diff --git a/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiAlgorithmServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiAlgorithmServiceImpl.java
index 109f8678d..7a1360f07 100644
--- a/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiAlgorithmServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiAlgorithmServiceImpl.java
@@ -5,6 +5,7 @@ import com.genersoft.iot.vmp.aiot.config.AiServiceConfig;
 import com.genersoft.iot.vmp.aiot.dao.AiAlgorithmMapper;
 import com.genersoft.iot.vmp.aiot.service.IAiAlgorithmService;
 import com.genersoft.iot.vmp.aiot.service.IAiConfigLogService;
+import jakarta.annotation.PostConstruct;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -12,6 +13,7 @@ import org.springframework.web.client.RestTemplate;
 
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -30,6 +32,57 @@ public class AiAlgorithmServiceImpl implements IAiAlgorithmService {
 
     private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
 
+    /**
+     * 预置算法定义，启动时自动校正数据库中的乱码数据
+     */
+    private static final Map<String, String[]> PRESET_ALGORITHMS = new HashMap<>();
+    static {
+        // algoCode -> {algoName, targetClass, description, paramSchema}
+        PRESET_ALGORITHMS.put("leave_post", new String[]{
+                "离岗检测", "person", "检测人员是否在岗，支持工作时间段配置",
+                "{\"confirm_on_duty_sec\":{\"type\":\"int\",\"default\":10,\"min\":1},\"confirm_leave_sec\":{\"type\":\"int\",\"default\":10,\"min\":1},\"cooldown_sec\":{\"type\":\"int\",\"default\":300,\"min\":0},\"working_hours\":{\"type\":\"list\",\"default\":[]}}"
+        });
+        PRESET_ALGORITHMS.put("intrusion", new String[]{
+                "周界入侵检测", "person", "检测人员进入指定区域",
+                "{\"cooldown_seconds\":{\"type\":\"int\",\"default\":120,\"min\":0},\"confirm_seconds\":{\"type\":\"int\",\"default\":5,\"min\":1}}"
+        });
+        PRESET_ALGORITHMS.put("crowd_detection", new String[]{
+                "人群聚集检测", "person", "检测区域内人员数量是否超过阈值",
+                "{\"max_count\":{\"type\":\"int\",\"default\":10,\"min\":1},\"cooldown_seconds\":{\"type\":\"int\",\"default\":300,\"min\":0}}"
+        });
+    }
+
+    @PostConstruct
+    public void initPresetAlgorithms() {
+        String now = LocalDateTime.now().format(FORMATTER);
+        for (Map.Entry<String, String[]> entry : PRESET_ALGORITHMS.entrySet()) {
+            String code = entry.getKey();
+            String[] vals = entry.getValue();
+            AiAlgorithm existing = algorithmMapper.queryByCode(code);
+            if (existing == null) {
+                AiAlgorithm algo = new AiAlgorithm();
+                algo.setAlgoCode(code);
+                algo.setAlgoName(vals[0]);
+                algo.setTargetClass(vals[1]);
+                algo.setDescription(vals[2]);
+                algo.setParamSchema(vals[3]);
+                algo.setIsActive(1);
+                algo.setCreateTime(now);
+                algo.setUpdateTime(now);
+                algorithmMapper.add(algo);
+                log.info("[AI算法] 初始化预置算法: {}", code);
+            } else {
+                existing.setAlgoName(vals[0]);
+                existing.setTargetClass(vals[1]);
+                existing.setDescription(vals[2]);
+                existing.setParamSchema(vals[3]);
+                existing.setUpdateTime(now);
+                algorithmMapper.updateByCode(existing);
+                log.info("[AI算法] 校正预置算法数据: {}", code);
+            }
+        }
+    }
+
     @Override
     public List<AiAlgorithm> queryAll() {
         return algorithmMapper.queryAll();