diff --git a/src/main/java/com/ctrip/zeus/clean/CleanDbJob.java b/src/main/java/com/ctrip/zeus/clean/CleanDbJob.java
new file mode 100644
index 00000000..951dac1f
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/clean/CleanDbJob.java
@@ -0,0 +1,29 @@
+package com.ctrip.zeus.clean;
+
+import com.ctrip.zeus.executor.TaskWorker;
+import org.quartz.DisallowConcurrentExecution;
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.scheduling.quartz.QuartzJobBean;
+
+/**
+ * Created by fanqq on 2015/10/16.
+ */
+@DisallowConcurrentExecution
+public class CleanDbJob extends QuartzJobBean {
+    CleanDbManager cleanDbManager;
+    Logger logger = LoggerFactory.getLogger(this.getClass());
+    @Override
+    protected void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException {
+        try{
+            cleanDbManager.run();
+        }catch (Exception e){
+            logger.warn("[clean db job] clean db exception."+e.getMessage(),e);
+        }
+    }
+    public void setCleanDbManager(CleanDbManager cleanDbManager) {
+        this.cleanDbManager = cleanDbManager;
+    }
+}
diff --git a/src/main/java/com/ctrip/zeus/clean/CleanDbManager.java b/src/main/java/com/ctrip/zeus/clean/CleanDbManager.java
new file mode 100644
index 00000000..072735fc
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/clean/CleanDbManager.java
@@ -0,0 +1,54 @@
+package com.ctrip.zeus.clean;
+
+import com.ctrip.zeus.service.clean.CleanFilter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by fanqq on 2015/10/16.
+ */
+@Component("cleanDbManager")
+public class CleanDbManager {
+    private  static  Long ticks = 0L;
+    @Resource
+    private CleanFilter oprationLogCleanFilter;
+    @Resource
+    private CleanFilter taskCleanFilter;
+
+    private List<CleanFilter> filters = new ArrayList<>();
+    private boolean inited = false;
+    Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    public void run() throws Exception{
+        init();
+        for (CleanFilter filter : filters){
+            if (filter.interval() == 0){
+                continue;
+            }
+            if (ticks % filter.interval() == 0){
+                try {
+                    filter.runFilter();
+                }catch (Exception e){
+                    logger.warn("[Clean Manager]Execute Clean Filter Failed.Filter:"+filter.getClass().getSimpleName(),e);
+                }
+            }
+        }
+        ticks++;
+    }
+
+    private void init() {
+        if (inited){
+            return;
+        }
+
+        filters.add(oprationLogCleanFilter);
+        filters.add(taskCleanFilter);
+
+        inited = true;
+    }
+}
diff --git a/src/main/java/com/ctrip/zeus/service/clean/CleanFilter.java b/src/main/java/com/ctrip/zeus/service/clean/CleanFilter.java
new file mode 100644
index 00000000..b869e9c5
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/service/clean/CleanFilter.java
@@ -0,0 +1,16 @@
+package com.ctrip.zeus.service.clean;
+
+/**
+ * Created by fanqq on 2015/10/20.
+ */
+public interface CleanFilter {
+    /**
+     * Filter runner.
+     */
+    public void runFilter()throws Exception;
+
+    /**
+     * return interval . Unit for hours. never run if return 0 .
+     */
+    public int interval();
+}
diff --git a/src/main/java/com/ctrip/zeus/service/clean/impl/ConfCleanFilter.java b/src/main/java/com/ctrip/zeus/service/clean/impl/ConfCleanFilter.java
new file mode 100644
index 00000000..1ceb1876
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/service/clean/impl/ConfCleanFilter.java
@@ -0,0 +1,48 @@
+package com.ctrip.zeus.service.clean.impl;
+
+import com.ctrip.zeus.dal.core.*;
+import com.ctrip.zeus.service.clean.CleanFilter;
+import com.ctrip.zeus.service.query.SlbCriteriaQuery;
+import com.netflix.config.DynamicIntProperty;
+import com.netflix.config.DynamicPropertyFactory;
+
+import javax.annotation.Resource;
+import java.util.Set;
+
+/**
+ * Created by fanqq on 2015/10/20.
+ */
+public class ConfCleanFilter implements CleanFilter {
+    @Resource
+    private NginxConfDao nginxConfDao;
+    @Resource
+    private NginxConfServerDao nginxConfServerDao;
+    @Resource
+    private NginxConfUpstreamDao nginxConfUpstreamDao;
+    @Resource
+    private SlbCriteriaQuery slbCriteriaQuery;
+    private static DynamicIntProperty confSaveCounts = DynamicPropertyFactory.getInstance().getIntProperty("config.save.count", 100000);
+
+    @Override
+    public void runFilter() throws Exception {
+        Set<Long> slbIds = slbCriteriaQuery.queryAll();
+        for (Long slbId : slbIds){
+            //remove nginx_conf
+            NginxConfDo nginxConfDo = nginxConfDao.findBySlbIdAndMaxVersion(slbId, NginxConfEntity.READSET_FULL);
+            nginxConfDao.deleteBySlbIdLessThanVersion(new NginxConfDo().setVersion(nginxConfDo.getVersion()-confSaveCounts.get()).setSlbId(slbId));
+
+            //remove nginx_conf_server
+            NginxConfServerDo nginxConfServerDo = nginxConfServerDao.findBySlbIdAndMaxVersion(slbId,NginxConfServerEntity.READSET_FULL);
+            nginxConfServerDao.deleteBySlbIdLessThanVersion(new NginxConfServerDo().setSlbId(slbId).setVersion(nginxConfServerDo.getVersion()-confSaveCounts.get()));
+
+            //remove nginx_conf_upstreams
+            NginxConfUpstreamDo nginxConfUpstreamDo = nginxConfUpstreamDao.findBySlbIdAndMaxVersion(slbId,NginxConfUpstreamEntity.READSET_FULL);
+            nginxConfUpstreamDao.deleteBySlbIdLessThanVersion(new NginxConfUpstreamDo().setSlbId(slbId).setVersion(nginxConfUpstreamDo.getVersion()-confSaveCounts.get()));
+        }
+    }
+
+    @Override
+    public int interval() {
+        return 12;
+    }
+}
diff --git a/src/main/java/com/ctrip/zeus/service/clean/impl/OprationLogCleanFilter.java b/src/main/java/com/ctrip/zeus/service/clean/impl/OprationLogCleanFilter.java
new file mode 100644
index 00000000..3ab71e76
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/service/clean/impl/OprationLogCleanFilter.java
@@ -0,0 +1,37 @@
+package com.ctrip.zeus.service.clean.impl;
+
+import com.ctrip.zeus.dal.core.OperationLogDao;
+import com.ctrip.zeus.dal.core.OperationLogDo;
+import com.ctrip.zeus.service.clean.CleanFilter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import org.unidal.dal.jdbc.DalException;
+
+import javax.annotation.Resource;
+import java.util.Calendar;
+import java.util.Date;
+
+/**
+ * Created by fanqq on 2015/10/20.
+ */
+@Service("oprationLogCleanFilter")
+public class OprationLogCleanFilter implements CleanFilter {
+    @Resource
+    private OperationLogDao operationLogDao;
+
+    Logger logger = LoggerFactory.getLogger(this.getClass());
+    @Override
+    public void runFilter() throws Exception {
+        Calendar rightNow = Calendar.getInstance();
+        rightNow.setTime(new Date());
+        rightNow.add(Calendar.DAY_OF_YEAR,-7);
+        Date dt = rightNow.getTime();
+        operationLogDao.deleteBeforeDatetime(new OperationLogDo().setDatetime(dt));
+    }
+
+    @Override
+    public int interval() {
+        return 12;
+    }
+}
diff --git a/src/main/java/com/ctrip/zeus/service/clean/impl/TaskCleanFilter.java b/src/main/java/com/ctrip/zeus/service/clean/impl/TaskCleanFilter.java
new file mode 100644
index 00000000..7bcf8eb5
--- /dev/null
+++ b/src/main/java/com/ctrip/zeus/service/clean/impl/TaskCleanFilter.java
@@ -0,0 +1,37 @@
+package com.ctrip.zeus.service.clean.impl;
+
+import com.ctrip.zeus.dal.core.TaskDao;
+import com.ctrip.zeus.dal.core.TaskDo;
+import com.ctrip.zeus.service.clean.CleanFilter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import org.unidal.dal.jdbc.DalException;
+
+import javax.annotation.Resource;
+import java.util.Calendar;
+import java.util.Date;
+
+/**
+ * Created by fanqq on 2015/10/20.
+ */
+@Service("taskCleanFilter")
+public class TaskCleanFilter implements CleanFilter {
+    @Resource
+    private TaskDao taskDao ;
+    Logger logger = LoggerFactory.getLogger(this.getClass());
+
+    @Override
+    public void runFilter() throws Exception {
+        Calendar rightNow = Calendar.getInstance();
+        rightNow.setTime(new Date());
+        rightNow.add(Calendar.DAY_OF_YEAR,-7);
+        Date dt = rightNow.getTime();
+        this.taskDao.deleteBeforeDatetime(new TaskDo().setCreateTime(dt));
+    }
+
+    @Override
+    public int interval() {
+        return 12;
+    }
+}
diff --git a/src/main/resources/META-INF/dal/jdbc/core-nginx.xml b/src/main/resources/META-INF/dal/jdbc/core-nginx.xml
index dddbbdd2..3b45cc75 100644
--- a/src/main/resources/META-INF/dal/jdbc/core-nginx.xml
+++ b/src/main/resources/META-INF/dal/jdbc/core-nginx.xml
@@ -24,6 +24,18 @@
                     ]]>
                 </statement>
             </query>
+            <query name="find-by-slb-id-and-max-version" type="SELECT">
+                <param name="slb-id"/>
+                <statement>
+                    <![CDATA[
+                    SELECT <FIELDS/>
+                    FROM <TABLE/>
+                        WHERE <FIELD name='slb-id'/> = ${slb-id}
+                        ORDER BY <FIELD name='version'/> DESC
+                        LIMIT 1
+                    ]]>
+                </statement>
+            </query>
             <query name="find-by-slb-id-and-version" type="SELECT">
                 <param name="slb-id"/>
                 <param name="version"/>
@@ -47,6 +59,17 @@
                     ]]>
                 </statement>
             </query>
+            <query name="delete-by-slb-id-less-than-version" type="DELETE">
+                <param name="slb-id"/>
+                <param name="version"/>
+                <statement>
+                    <![CDATA[
+                    DELETE FROM <TABLE/>
+                    WHERE <FIELD name='slb-id'/> = ${slb-id}
+                    AND <FIELD name='version'/> < ${version}
+                    ]]>
+                </statement>
+            </query>
         </query-defs>
     </entity>
     <entity name="nginx-conf-server" table="nginx_conf_server" alias="ncs">
@@ -100,6 +123,18 @@
                     ]]>
                 </statement>
             </query>
+            <query name="find-by-slb-id-and-max-version" type="SELECT">
+                <param name="slb-id"/>
+                <statement>
+                    <![CDATA[
+                    SELECT <FIELDS/>
+                    FROM <TABLE/>
+                        WHERE <FIELD name='slb-id'/> = ${slb-id}
+                        ORDER BY <FIELD name='version'/> DESC
+                        LIMIT 1
+                    ]]>
+                </statement>
+            </query>
             <query name="delete-by-slb-id-from-version" type="DELETE">
                 <param name="slb-id"/>
                 <param name="version"/>
@@ -111,6 +146,17 @@
                     ]]>
                 </statement>
             </query>
+            <query name="delete-by-slb-id-less-than-version" type="DELETE">
+                <param name="slb-id"/>
+                <param name="version"/>
+                <statement>
+                    <![CDATA[
+                    DELETE FROM <TABLE/>
+                    WHERE <FIELD name='slb-id'/> = ${slb-id}
+                    AND <FIELD name='version'/> < ${version}
+                    ]]>
+                </statement>
+            </query>
         </query-defs>
     </entity>
     <entity name="nginx-conf-upstream" table="nginx_conf_upstream" alias="ncs">
@@ -164,6 +210,18 @@
                     ]]>
                 </statement>
             </query>
+            <query name="find-by-slb-id-and-max-version" type="SELECT">
+                <param name="slb-id"/>
+                <statement>
+                    <![CDATA[
+                    SELECT <FIELDS/>
+                    FROM <TABLE/>
+                        WHERE <FIELD name='slb-id'/> = ${slb-id}
+                        ORDER BY <FIELD name='version'/> DESC
+                        LIMIT 1
+                    ]]>
+                </statement>
+            </query>
             <query name="delete-by-slb-id-from-version" type="DELETE">
                 <param name="slb-id"/>
                 <param name="version"/>
@@ -175,6 +233,17 @@
                     ]]>
                 </statement>
             </query>
+            <query name="delete-by-slb-id-less-than-version" type="DELETE">
+                <param name="slb-id"/>
+                <param name="version"/>
+                <statement>
+                    <![CDATA[
+                    DELETE FROM <TABLE/>
+                    WHERE <FIELD name='slb-id'/> = ${slb-id}
+                    AND <FIELD name='version'/> < ${version}
+                    ]]>
+                </statement>
+            </query>
         </query-defs>
     </entity>
     <entity name="nginx-server" table="nginx_server" alias="ns">
diff --git a/src/main/resources/spring-context-quartz.xml b/src/main/resources/spring-context-quartz.xml
index f96ac776..f3e02c1d 100644
--- a/src/main/resources/spring-context-quartz.xml
+++ b/src/main/resources/spring-context-quartz.xml
@@ -77,6 +77,23 @@
         <property name="repeatInterval" value="1000"/>
     </bean>
 
+    <bean id="cleanManagerDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
+        <property name="jobClass" value="com.ctrip.zeus.clean.CleanDbJob"/>
+        <property name="jobDataMap">
+            <map>
+                <entry key="cleanDbManager" value-ref="cleanDbManager" />
+            </map>
+        </property>
+        <property name="durability" value="true"/>
+    </bean>
+
+    <!-- Run the job every 1h = 60*60*1000=3600000 ms with initial delay of 1 second -->
+    <bean id="cleanManagerTrigger"  class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">
+        <property name="jobDetail" ref="cleanManagerDetail"/>
+        <property name="startDelay" value="1000"/>
+        <property name="repeatInterval" value="3600000"/>
+    </bean>
+
     <!-- Scheduler factory bean to glue together jobDetails and triggers to Configure Quartz Scheduler -->
     <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
         <property name="jobDetails">
@@ -85,6 +102,7 @@
                 <ref bean="operationLogCleanDetail"/>
                 <ref bean="taskWorkerDetail"/>
                 <ref bean="taskCleanDetail"/>
+                <ref bean="cleanManagerDetail"/>
             </list>
         </property>
         <property name="triggers">
@@ -93,6 +111,7 @@
                 <ref bean="operationLogCleanTrigger"/>
                 <ref bean="taskWorkerTrigger"/>
                 <ref bean="taskCleanTrigger"/>
+                <ref bean="cleanManagerTrigger"/>
             </list>
         </property>
     </bean>