diff --git a/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java b/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java
index 505d656d..0823cb14 100644
--- a/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java
+++ b/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java
@@ -1018,7 +1018,7 @@ public class FlowTaskServiceImpl extends FlowServiceFactory implements IFlowTask
                     MultiInstanceLoopCharacteristics multiInstance = userTask.getLoopCharacteristics();
                     // 会签节点
                     if (Objects.nonNull(multiInstance)) {
-                        flowNextDto.setVars(multiInstance.getElementVariable());
+                        flowNextDto.setVars(multiInstance.getInputDataItem());
                         flowNextDto.setType(ProcessConstants.PROCESS_MULTI_INSTANCE);
                         flowNextDto.setDataType(ProcessConstants.DYNAMIC);
                     } else {
@@ -1055,7 +1055,7 @@ public class FlowTaskServiceImpl extends FlowServiceFactory implements IFlowTask
                 MultiInstanceLoopCharacteristics multiInstance = userTask.getLoopCharacteristics();
                 // 会签节点
                 if (Objects.nonNull(multiInstance)) {
-                    flowNextDto.setVars(multiInstance.getElementVariable());
+                    flowNextDto.setVars(multiInstance.getInputDataItem());
                     flowNextDto.setType(ProcessConstants.PROCESS_MULTI_INSTANCE);
                     flowNextDto.setDataType(ProcessConstants.DYNAMIC);
                 } else {
diff --git a/ruoyi-ui/src/views/flowable/task/myProcess/send/index.vue b/ruoyi-ui/src/views/flowable/task/myProcess/send/index.vue
index 74be9be3..6cfacb73 100644
--- a/ruoyi-ui/src/views/flowable/task/myProcess/send/index.vue
+++ b/ruoyi-ui/src/views/flowable/task/myProcess/send/index.vue
@@ -235,7 +235,7 @@ export default {
         if (selection instanceof Array) {
           const selectVal = selection.map(item => item.userId);
           if (this.multiInstanceVars) {
-            this.checkValues = selection;
+            this.checkValues = selectVal;
           } else {
             this.checkValues = selectVal.join(',');
           }
diff --git a/ruoyi-ui/src/views/flowable/task/todo/detail/index.vue b/ruoyi-ui/src/views/flowable/task/todo/detail/index.vue
index 87f104b0..6ceaefe7 100644
--- a/ruoyi-ui/src/views/flowable/task/todo/detail/index.vue
+++ b/ruoyi-ui/src/views/flowable/task/todo/detail/index.vue
@@ -272,7 +272,7 @@ export default {
         if (selection instanceof Array) {
           const selectVal = selection.map(item => item.userId);
           if (this.multiInstanceVars) {
-            this.$set(this.taskForm.variables, this.multiInstanceVars, selection);
+            this.$set(this.taskForm.variables, this.multiInstanceVars, selectVal);
           } else {
             this.$set(this.taskForm.variables, "approval", selectVal.join(','));
           }