diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/listener/impl/InternalTaskEventListener.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/listener/impl/InternalTaskEventListener.java
index 8d6212cf3..679690d8f 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/listener/impl/InternalTaskEventListener.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/listener/impl/InternalTaskEventListener.java
@@ -33,6 +33,7 @@ public class InternalTaskEventListener implements BpmnTaskEventListener {
         entity.setTaskDefinitionKey(delegateTask.getTaskDefinitionKey());
         entity.setTaskId(delegateTask.getId());
         entity.setStatus(BpmnProcessInstanceResultEnum.APPROVED.getStatus());
+        entity.setAssignee(delegateTask.getAssignee());
         hiTaskInstService.save(entity);
     }
 }
diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/repository/entity/ExtAxHiTaksInst.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/repository/entity/ExtAxHiTaksInst.java
index 2fd97b0fe..eada585d8 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/repository/entity/ExtAxHiTaksInst.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/repository/entity/ExtAxHiTaksInst.java
@@ -47,4 +47,10 @@ public class ExtAxHiTaksInst extends BaseEntity<ExtAxHiTaksInst> {
     @TableField("status")
     private String status;
 
+    /**
+     * 同意的人
+     */
+    @TableField("assignee")
+    private String assignee;
+
 }
diff --git a/workflow-engine-core/src/main/resources/sql/ext_ax_hi_taskinst.sql b/workflow-engine-core/src/main/resources/sql/ext_ax_hi_taskinst.sql
index 4f60c9948..f1b46d080 100644
--- a/workflow-engine-core/src/main/resources/sql/ext_ax_hi_taskinst.sql
+++ b/workflow-engine-core/src/main/resources/sql/ext_ax_hi_taskinst.sql
@@ -12,4 +12,4 @@ CREATE TABLE IF NOT EXISTS EXT_AX_HI_TASKINST
     `is_delete`           bigint       NOT NULL DEFAULT '0' COMMENT '是否删除',
     PRIMARY KEY (`id`)
 ) ENGINE = InnoDB COMMENT '流程历史任务信息扩展表';
-create index idx_proc_def_id on EXT_AX_HI_TASKINST (proc_inst_id, task_definition_key, task_id);
+create index idx_proc_def_id on EXT_AX_HI_TASKINST (proc_inst_id, task_definition_key, task_id, assignee);