diff --git a/src/configs/project_setting.hpp b/src/configs/project_setting.hpp
index 7b3c0ad..4b9b97a 100644
--- a/src/configs/project_setting.hpp
+++ b/src/configs/project_setting.hpp
@@ -11,8 +11,8 @@
 
 // #define PROJECT_TYPE_LARGE_SPACE_DISINFECTION 1 // 大空间
 // #define PROJECT_TYPE_SMALL_SPACE_DISINFECTION 1  // 小空间
-#define PROJECT_TYPE_PIPE_DISINFECTION 1  // 管道消毒机
-// #define PROJECT_TYPE_DRAW_BAR_BOX 1  // 拉感箱
+// #define PROJECT_TYPE_PIPE_DISINFECTION 1  // 管道消毒机
+#define PROJECT_TYPE_DRAW_BAR_BOX 1  // 拉感箱
 // #if (defined PROJECT_TYPE_LARGE_SPACE_DISINFECTION) || (defined PROJECT_TYPE_SMALL_SPACE_DISINFECTION) || (defined PROJECT_TYPE_PIPE_DISINFECTION)
 
 
diff --git a/src/service/device_io_control_service_test.cpp b/src/service/device_io_control_service_test.cpp
index 9741a9e..933959e 100644
--- a/src/service/device_io_control_service_test.cpp
+++ b/src/service/device_io_control_service_test.cpp
@@ -291,6 +291,6 @@ int32_t DeviceIoControlServiceTest::DBDB__extValveCtrl(int index) {
 }
 int32_t DeviceIoControlServiceTest::DBDB__extValBoardIsOnline() {
   logger->info("DBDB__extValBoardIsOnline");
-  return 0;
+  return 1;
 }
 #endif
\ No newline at end of file
diff --git a/src/service/disfection_ctl/disinfection_service.cpp b/src/service/disfection_ctl/disinfection_service.cpp
index 74bc58e..84e0614 100644
--- a/src/service/disfection_ctl/disinfection_service.cpp
+++ b/src/service/disfection_ctl/disinfection_service.cpp
@@ -596,12 +596,70 @@ void DisinfectionService::updateSprayLiquidPumpSpeed() {
 void DisinfectionService::beforeStateProcess() { updateH2O2SensorData(); }
 
 void DisinfectionService::processStateIdle(disinfection_event_t* event) { sm.changeState(kstate_finished); }
+
+void DisinfectionService::processStateDehumidification_before_disinfection(disinfection_event_t* event) {
+  disinfection_state_t next_state = kstate_preheat;
+
+  auto dsio = m_deviceIoControlService;
+  if (!cfg.enable_bf_dinft_dehumidification) {
+    if (event->event == kdisinfection_event_enter_state) {
+      sm.changeState(next_state);
+      return;
+    }
+  }
+  //
+  if (event->event == kdisinfection_event_enter_state) {
+    tryLogSatate(true);
+#if (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    dsio->DBDB__miniPwmBlowerCtrl(DBDB_MINI_PWM_BLOWER_VAL);  // 风量
+    usleep(100 * 1000);
+    dsio->DBDB__extValveCtrl(IF_DeviceIoContrlService::kExtValveChannel_dehumidificationChannel);
+#endif
+
+  }
+  //
+  else if (event->event == kdisinfection_event_exit_state) {
+#if (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    dsio->DBDB__miniPwmBlowerCtrl(0);
+    usleep(100 * 1000);
+    dsio->DBDB__extValveCtrl(IF_DeviceIoContrlService::kExtValveChannel_disinfectionChannel);
+#endif
+  }
+
+  //
+  else if (event->event == kdisinfection_event_tmr_1s) {
+#if (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    if (!dsio->DBDB__extValBoardIsOnline()) {
+      logger->error("exit dehumidification state, because extValBoard is offline");
+      sm.changeState(next_state);
+      return;
+    }
+    if (context.max_humid <= cfg.bf_dinft_dehumidification_target_val) {
+      logger->info("exit dehumidification state, because humidity is lower than target value");
+      sm.changeState(next_state);
+      return;
+    } else {
+      logger->info("dehumidification {} > {} ", context.max_humid, cfg.bf_dinft_dehumidification_target_val);
+    }
+#else
+    sm.changeState(next_state);
+#endif
+    tryLogSatate(false);
+
+  }
+
+  else if (event->event == kdisinfection_event_stop) {
+    sm.changeState(kstate_finished);
+  }
+}
+
 void DisinfectionService::processStatePreheat(disinfection_event_t* event) {
   /**
    * @brief 状态逻辑
    *    1. 记录日志
    *    2. 检查是否预热完成
    */
+  disinfection_state_t next_state = kstate_disinfection;
 
   /*******************************************************************************
    *                                  进入状态                                   *
@@ -639,7 +697,7 @@ void DisinfectionService::processStatePreheat(disinfection_event_t* event) {
       /**
        * @brief 退出预热状态，进入消毒状态
        */
-      sm.changeState(kstate_disinfection);
+      sm.changeState(next_state);
     }
     tryLogSatate(false);
   }
@@ -653,6 +711,8 @@ void DisinfectionService::processStatePreheat(disinfection_event_t* event) {
 }
 
 void DisinfectionService::processStateDisinfection(disinfection_event_t* event) {
+  disinfection_state_t next_state = kstate_dehumidification_after_disinfection;
+
   /**
    * @brief 状态逻辑
    *    1. 记录日志
@@ -767,7 +827,7 @@ void DisinfectionService::processStateDisinfection(disinfection_event_t* event)
       /**
        * @brief 消毒结束
        */
-      sm.changeState(kstate_degradation);
+      sm.changeState(next_state);
     }
     tryLogSatate(false);
 
@@ -785,6 +845,114 @@ void DisinfectionService::processStateDisinfection(disinfection_event_t* event)
   }
 }
 
+void DisinfectionService::processStateDehumidification_after_disinfection(disinfection_event_t* event) {
+  disinfection_state_t next_state = kstate_degradation;
+
+  auto dsio = m_deviceIoControlService;
+  if (!cfg.enable_af_dinft_dehumidification) {
+    if (event->event == kdisinfection_event_enter_state) {
+      sm.changeState(next_state);
+      return;
+    }
+  }
+  //
+  if (event->event == kdisinfection_event_enter_state) {
+    tryLogSatate(true);
+#if (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    dsio->DBDB__miniPwmBlowerCtrl(DBDB_MINI_PWM_BLOWER_VAL);  // 风量
+    usleep(100 * 1000);
+    dsio->DBDB__extValveCtrl(IF_DeviceIoContrlService::kExtValveChannel_dehumidificationChannel);
+#endif
+
+  }
+  //
+  else if (event->event == kdisinfection_event_exit_state) {
+#if (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    dsio->DBDB__miniPwmBlowerCtrl(0);
+    usleep(100 * 1000);
+    dsio->DBDB__extValveCtrl(IF_DeviceIoContrlService::kExtValveChannel_disinfectionChannel);
+#endif
+  }
+
+  //
+  else if (event->event == kdisinfection_event_tmr_1s) {
+#if (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    if (!dsio->DBDB__extValBoardIsOnline()) {
+      logger->error("exit dehumidification state, because extValBoard is offline");
+      sm.changeState(next_state);
+      return;
+    }
+    if (context.max_humid <= cfg.af_dinft_dehumidification_target_val) {
+      logger->info("exit dehumidification state, because humidity is lower than target value");
+      sm.changeState(next_state);
+      return;
+    } else {
+      logger->info("dehumidification {} > {} ", context.max_humid, cfg.af_dinft_dehumidification_target_val);
+    }
+#else
+    sm.changeState(next_state);
+#endif
+    tryLogSatate(false);
+
+  }
+
+  else if (event->event == kdisinfection_event_stop) {
+    sm.changeState(kstate_finished);
+  }
+}
+
+void DisinfectionService::processStateDegradation(disinfection_event_t* event) {
+  disinfection_state_t next_state = kstate_finished;
+  auto                 dsio       = m_deviceIoControlService;
+
+  if (!cfg.enable_degradation) {
+    if (event->event == kdisinfection_event_enter_state) {
+      sm.changeState(next_state);
+      return;
+    }
+  }
+
+  //
+  if (event->event == kdisinfection_event_enter_state) {
+    tryLogSatate(true);
+
+#if (defined PROJECT_TYPE_LARGE_SPACE_DISINFECTION) || (defined PROJECT_TYPE_SMALL_SPACE_DISINFECTION) || (defined PROJECT_TYPE_PIPE_DISINFECTION)
+    m_deviceIoControlService->airBlower_setState(true);
+#elif (defined PROJECT_TYPE_DRAW_BAR_BOX)
+
+    if (dsio->DBDB__extValBoardIsOnline()) dsio->DBDB__extValveCtrl(IF_DeviceIoContrlService::kExtValveChannel_degradationChannel);
+    usleep(100 * 1000);
+    dsio->DBDB__miniPwmBlowerCtrl(DBDB_MINI_PWM_BLOWER_VAL);  // 风量
+#endif
+
+  }
+  //
+  else if (event->event == kdisinfection_event_exit_state) {
+#if (defined PROJECT_TYPE_LARGE_SPACE_DISINFECTION) || (defined PROJECT_TYPE_SMALL_SPACE_DISINFECTION) || (defined PROJECT_TYPE_PIPE_DISINFECTION)
+    m_deviceIoControlService->airBlower_setState(false);
+#elif (defined PROJECT_TYPE_DRAW_BAR_BOX)
+    if (dsio->DBDB__extValBoardIsOnline()) dsio->DBDB__extValveCtrl(IF_DeviceIoContrlService::kExtValveChannel_disinfectionChannel);
+    usleep(100 * 1000);
+    dsio->DBDB__miniPwmBlowerCtrl(0);
+
+#endif
+  }
+
+  //
+  else if (event->event == kdisinfection_event_tmr_1s) {
+    logger->info("waitting for h2o2 concentration to safe value {}=>{}", context.max_h2o2, 1);
+    if (context.max_h2o2 < 1) {
+      logger->info("h2o2 concentration to safe value");
+      sm.changeState(next_state);
+    }
+    tryLogSatate(false);
+  }
+
+  else if (event->event == kdisinfection_event_stop) {
+    sm.changeState(kstate_finished);
+  }
+}
+
 void DisinfectionService::processStateFinished(disinfection_event_t* event) {
   if (event->event == kdisinfection_event_enter_state) {
     if (event->enterState.last != kstate_idle && event->enterState.last != kstate_finished) {
@@ -838,36 +1006,3 @@ void DisinfectionService::processStateFinished(disinfection_event_t* event) {
     }
   }
 }
-
-void DisinfectionService::processStateDegradation(disinfection_event_t* event) {
-  //
-  if (event->event == kdisinfection_event_enter_state) {
-#if (defined PROJECT_TYPE_LARGE_SPACE_DISINFECTION) || (defined PROJECT_TYPE_SMALL_SPACE_DISINFECTION) || (defined PROJECT_TYPE_PIPE_DISINFECTION)
-    m_deviceIoControlService->airBlower_setState(true);
-#elif (defined PROJECT_TYPE_DRAW_BAR_BOX)
-#endif
-
-  }
-  //
-  else if (event->event == kdisinfection_event_exit_state) {
-#if (defined PROJECT_TYPE_LARGE_SPACE_DISINFECTION) || (defined PROJECT_TYPE_SMALL_SPACE_DISINFECTION) || (defined PROJECT_TYPE_PIPE_DISINFECTION)
-    m_deviceIoControlService->airBlower_setState(false);
-#elif (defined PROJECT_TYPE_DRAW_BAR_BOX)
-#endif
-  }
-
-  //
-  else if (event->event == kdisinfection_event_tmr_1s) {
-    logger->info("waitting for h2o2 concentration to safe value {}=>{}", context.max_h2o2, 1);
-    if (context.max_h2o2 < 1) {
-      logger->info("h2o2 concentration to safe value");
-      sm.changeState(kstate_finished);
-    }
-  }
-
-  else if (event->event == kdisinfection_event_stop) {
-    sm.changeState(kstate_finished);
-  }
-}
-void DisinfectionService::processStateDehumidification_before_disinfection(disinfection_event_t* event) {}
-void DisinfectionService::processStateDehumidification_after_disinfection(disinfection_event_t* event) {}