diff --git a/pom.xml b/pom.xml
index 9aeb6c8..2d70714 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.yanghuanglin</groupId>
     <artifactId>seq</artifactId>
-    <version>1.0.0</version>
+    <version>1.1.0</version>
     <name>seq</name>
     <description>seq</description>
     <properties>
diff --git a/src/main/java/com/yanghuanglin/seq/dao/SequencesUnusedDao.java b/src/main/java/com/yanghuanglin/seq/dao/SequencesUnusedDao.java
index 915e89f..84c5c8c 100644
--- a/src/main/java/com/yanghuanglin/seq/dao/SequencesUnusedDao.java
+++ b/src/main/java/com/yanghuanglin/seq/dao/SequencesUnusedDao.java
@@ -25,6 +25,11 @@ public interface SequencesUnusedDao {
      */
     boolean delete(SequencesUnused sequencesUnused);
 
+    /**
+     * 保存空闲序号
+     */
+    boolean save(SequencesUnused sequencesUnused);
+
     /**
      * 批量保存空闲序号
      */
diff --git a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java
index 5e8270b..25a1890 100644
--- a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java
+++ b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesDaoImpl.java
@@ -11,6 +11,7 @@ import org.springframework.jdbc.core.JdbcTemplate;
  * @author yanghuanglin
  * @since 2022/1/28
  */
+@SuppressWarnings("SqlResolve")
 public class SequencesDaoImpl implements SequencesDao {
     private final JdbcTemplate jdbcTemplate;
     private final TableConfig tableConfig;
diff --git a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnlockDaoImpl.java b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnlockDaoImpl.java
index 2ce0035..ec50a3a 100644
--- a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnlockDaoImpl.java
+++ b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnlockDaoImpl.java
@@ -13,6 +13,7 @@ import java.util.List;
  * @author yanghuanglin
  * @since 2022/1/28
  */
+@SuppressWarnings("SqlResolve")
 public class SequencesUnlockDaoImpl implements SequencesUnlockDao {
     private final JdbcTemplate jdbcTemplate;
     private final TableConfig tableConfig;
diff --git a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnusedDaoImpl.java b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnusedDaoImpl.java
index 235c268..786558f 100644
--- a/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnusedDaoImpl.java
+++ b/src/main/java/com/yanghuanglin/seq/dao/impl/SequencesUnusedDaoImpl.java
@@ -16,6 +16,7 @@ import java.util.List;
  * @author yanghuanglin
  * @since 2022/1/28
  */
+@SuppressWarnings("SqlResolve")
 public class SequencesUnusedDaoImpl implements SequencesUnusedDao {
     private final JdbcTemplate jdbcTemplate;
     private final TableConfig tableConfig;
@@ -55,6 +56,14 @@ public class SequencesUnusedDaoImpl implements SequencesUnusedDao {
         return result != 0;
     }
 
+    @Override
+    public boolean save(SequencesUnused sequencesUnused) {
+        String sql = "insert into `%s_ununsed`(`%s`,`%s`,`%s`) values(?,?,?)";
+        sql = String.format(sql, tableConfig.getTable(), tableConfig.getKeyColumn(), tableConfig.getTypeColumn(), tableConfig.getSeqColumn());
+        int result = this.jdbcTemplate.update(sql, sequencesUnused.getKey(), sequencesUnused.getType(), sequencesUnused.getSeq());
+        return result != 0;
+    }
+
     @Override
     public boolean saveBatch(List<SequencesUnused> sequencesUnusedList) {
         String sql = "insert into `%s_ununsed`(`%s`,`%s`,`%s`) values(?,?,?)";
diff --git a/src/main/java/com/yanghuanglin/seq/generator/Generator.java b/src/main/java/com/yanghuanglin/seq/generator/Generator.java
index ea5823b..1a767c7 100644
--- a/src/main/java/com/yanghuanglin/seq/generator/Generator.java
+++ b/src/main/java/com/yanghuanglin/seq/generator/Generator.java
@@ -111,4 +111,11 @@ public interface Generator {
      * @param end   结束时间
      */
     void release(Date begin, Date end);
+
+    /**
+     * 释放指定序号。一般用于业务对象删除后，对应序号需要回收使用时。
+     *
+     * @param sequences 需要释放的序号。一般是一个通过{@link Sequences#setKey(String)}、{@link Sequences#setType(String)}、{@link Sequences#setSeq(Long)}三方法一起手动构建或通过{@link Sequences#Sequences(String, String, Long)}构造方法构建的实例对象
+     */
+    void release(Sequences sequences);
 }
diff --git a/src/main/java/com/yanghuanglin/seq/generator/impl/SequencesGenerator.java b/src/main/java/com/yanghuanglin/seq/generator/impl/SequencesGenerator.java
index bfb969b..650afde 100644
--- a/src/main/java/com/yanghuanglin/seq/generator/impl/SequencesGenerator.java
+++ b/src/main/java/com/yanghuanglin/seq/generator/impl/SequencesGenerator.java
@@ -2,22 +2,25 @@ package com.yanghuanglin.seq.generator.impl;
 
 import com.yanghuanglin.seq.config.GeneratorConfig;
 import com.yanghuanglin.seq.dao.SequencesDao;
-import com.yanghuanglin.seq.dao.SequencesUnusedDao;
 import com.yanghuanglin.seq.dao.SequencesUnlockDao;
+import com.yanghuanglin.seq.dao.SequencesUnusedDao;
 import com.yanghuanglin.seq.dao.impl.SequencesDaoImpl;
-import com.yanghuanglin.seq.dao.impl.SequencesUnusedDaoImpl;
 import com.yanghuanglin.seq.dao.impl.SequencesUnlockDaoImpl;
-import com.yanghuanglin.seq.po.Sequences;
-import com.yanghuanglin.seq.po.SequencesUnused;
-import com.yanghuanglin.seq.po.SequencesUnlock;
+import com.yanghuanglin.seq.dao.impl.SequencesUnusedDaoImpl;
 import com.yanghuanglin.seq.generator.Generator;
+import com.yanghuanglin.seq.po.Sequences;
+import com.yanghuanglin.seq.po.SequencesUnlock;
+import com.yanghuanglin.seq.po.SequencesUnused;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.jdbc.datasource.DataSourceTransactionManager;
 import org.springframework.jdbc.support.JdbcTransactionManager;
 import org.springframework.transaction.support.TransactionTemplate;
 
 import javax.sql.DataSource;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.List;
 
 public class SequencesGenerator implements Generator {
     private final TransactionTemplate transactionTemplate;
@@ -185,4 +188,10 @@ public class SequencesGenerator implements Generator {
         //删除指定时间段内使用中表的数据
         sequencesUnlockDao.deleteByDate(begin, end);
     }
+
+    @Override
+    public void release(Sequences sequences) {
+        sequencesUnlockDao.delete(new SequencesUnlock(sequences));
+        sequencesUnusedDao.save(new SequencesUnused(sequences));
+    }
 }
diff --git a/src/main/java/com/yanghuanglin/seq/po/Sequences.java b/src/main/java/com/yanghuanglin/seq/po/Sequences.java
index 0485301..1d55358 100644
--- a/src/main/java/com/yanghuanglin/seq/po/Sequences.java
+++ b/src/main/java/com/yanghuanglin/seq/po/Sequences.java
@@ -35,6 +35,12 @@ public class Sequences {
         this.type = type;
     }
 
+    public Sequences(String key, String type, Long seq) {
+        this.key = key;
+        this.type = type;
+        this.seq = seq;
+    }
+
     public Sequences(SequencesUnused sequencesUnused) {
         this.key = sequencesUnused.getKey();
         this.type = sequencesUnused.getType();