diff --git a/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/MesEnumUtil.java b/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/MesEnumUtil.java
index 98ad82a..363e667 100644
--- a/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/MesEnumUtil.java
+++ b/modules/i3plus-pojo-base/src/main/java/cn/estsh/i3plus/pojo/base/enumutil/MesEnumUtil.java
@@ -3126,6 +3126,41 @@ public class MesEnumUtil {
     }
 
     /**
+     * 工步参数 是否必填
+     */
+    @JsonFormat(shape = JsonFormat.Shape.OBJECT)
+    public enum MES_STEP_PARAM_IS_NEED {
+        TRUE(1, "是"),
+        FALSE(2, "否");
+
+        private int value;
+        private String description;
+
+        MES_STEP_PARAM_IS_NEED(int value, String description) {
+            this.value = value;
+            this.description = description;
+        }
+
+        public int getValue() {
+            return value;
+        }
+
+        public String getDescription() {
+            return description;
+        }
+
+        public static String valueOfDescription(int val) {
+            String tmp = null;
+            for (int i = 0; i < values().length; i++) {
+                if (values()[i].value == val) {
+                    tmp = values()[i].description;
+                }
+            }
+            return tmp;
+        }
+    }
+
+    /**
      * mes工作单元参数类型
      */
     @JsonFormat(shape = JsonFormat.Shape.OBJECT)
diff --git a/modules/i3plus-pojo-mes/src/main/java/cn/estsh/i3plus/pojo/mes/bean/MesStepParam.java b/modules/i3plus-pojo-mes/src/main/java/cn/estsh/i3plus/pojo/mes/bean/MesStepParam.java
index cd1bd7f..1a6f5b7 100644
--- a/modules/i3plus-pojo-mes/src/main/java/cn/estsh/i3plus/pojo/mes/bean/MesStepParam.java
+++ b/modules/i3plus-pojo-mes/src/main/java/cn/estsh/i3plus/pojo/mes/bean/MesStepParam.java
@@ -65,6 +65,10 @@ public class MesStepParam extends BaseBean implements Serializable {
     @ApiParam("参数对象")
     private String objectCode;
 
+    @Column(name = "IS_NEED")
+    @ApiParam("是否必需")
+    private Integer isNeed = 1;
+
     @Column(name = "TYPE")
     @ApiParam("type")
     private Integer type = 0;