diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/el/ContainsExpressionFunction.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/el/ContainsExpressionFunction.java
new file mode 100644
index 0000000000..f343336fbd
--- /dev/null
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/el/ContainsExpressionFunction.java
@@ -0,0 +1,46 @@
+package cn.iocoder.yudao.module.bpm.framework.flowable.core.el;
+
+import org.flowable.common.engine.api.variable.VariableContainer;
+import org.flowable.common.engine.impl.el.function.AbstractFlowableVariableExpressionFunction;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+public class ContainsExpressionFunction extends AbstractFlowableVariableExpressionFunction {
+
+    public ContainsExpressionFunction() {
+        super("contains");
+    }
+
+    public static boolean contains(VariableContainer variableContainer, String variableName, Object paramValue) {
+        Object variable = variableContainer.getVariable(variableName);
+        if (variable instanceof List<?> list) {
+            Object convertedValue = convertParamValue(list, paramValue);
+            return list.contains(convertedValue);
+        }
+        return false;
+    }
+
+    private static Object convertParamValue(List<?> list, Object paramValue) {
+        if (list.isEmpty()) {
+            return paramValue;
+        }
+        Object firstElement = list.get(0);
+        if (firstElement instanceof String) {
+            return paramValue.toString();
+        } else if (firstElement instanceof Number) {
+            try {
+                if (firstElement instanceof Integer) {
+                    return Integer.parseInt(paramValue.toString());
+                } else if (firstElement instanceof Long) {
+                    return Long.parseLong(paramValue.toString());
+                }
+                // 其他数值类型处理...
+            } catch (NumberFormatException e) {
+                return paramValue; // 转换失败，保持原样
+            }
+        }
+        return paramValue;
+    }
+}
\ No newline at end of file
diff --git a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java
index bd427e32f2..77b67a339d 100644
--- a/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java
+++ b/yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/util/SimpleModelUtils.java
@@ -692,7 +692,14 @@ public class SimpleModelUtils {
                 List<String> list = CollectionUtils.convertList(item.getRules(), (rule) -> {
                     String rightSide = NumberUtil.isNumber(rule.getRightSide()) ? rule.getRightSide()
                             : "\"" + rule.getRightSide() + "\""; // 如果非数值类型加引号
-                    return String.format(" %s %s var:convertByType(%s,%s)", rule.getLeftSide(), rule.getOpCode(), rule.getLeftSide(), rightSide);
+                    System.out.println(rule.getOpCode());
+                    if ("contains".equals(rule.getOpCode())) {
+                        return String.format("var:contains(%s, %s)", rule.getLeftSide(), rightSide);
+                    } else if ("notContains".equals(rule.getOpCode())) {
+                        return String.format("!var:contains(%s, %s)", rule.getLeftSide(), rightSide);
+                    } else {
+                        return String.format(" %s %s var:convertByType(%s,%s)", rule.getLeftSide(), rule.getOpCode(), rule.getLeftSide(), rightSide);
+                    }
                 });
                 // 构造条件组的表达式
                 Boolean and = item.getAnd();