diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/constant/TransportBusiConstant.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/constant/TransportBusiConstant.java
index f27ce70d..93f278b8 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/constant/TransportBusiConstant.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/constant/TransportBusiConstant.java
@@ -61,6 +61,14 @@ public final class TransportBusiConstant {
 	/** 审批状态：已作废（终态）。 */
 	public static final String VOIDED = "voided";
 
+	/**
+	 * 「未分配组织」筛选项的哨兵值，不是真实组织名。
+	 * <p>
+	 * 前端 organization-search 混入、DriverMapper.xml 与 TransportVehicleMapper.xml 的
+	 * organizationName 分支、以及两个导出查询都按这个字面量判定，四处必须同步修改。
+	 */
+	public static final String UNASSIGNED_ORG_FILTER = "__UNASSIGNED_ORG__";
+
 	private TransportBusiConstant() {
 	}
 }
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/DriverController.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/DriverController.java
index 89f336bc..e409446d 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/DriverController.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/DriverController.java
@@ -43,6 +43,7 @@ import org.springblade.core.secure.annotation.PreAuth;
 import org.springblade.core.tool.api.R;
 import org.springblade.core.tool.utils.DateUtil;
 import org.springblade.core.tool.utils.Func;
+import org.springblade.transport.constant.TransportBusiConstant;
 import org.springblade.transport.excel.DriverExcel;
 import org.springblade.transport.pojo.entity.Driver;
 import org.springblade.transport.pojo.vo.DriverExpiryStatVO;
@@ -233,7 +234,11 @@ public class DriverController extends BladeController {
 		if (Func.isNotEmpty(driver.getDriverType())) {
 			queryWrapper.eq(Driver::getDriverType, driver.getDriverType());
 		}
-		if (Func.isNotEmpty(driver.getOrganizationName())) {
+		// 「未分配组织」哨兵改判组织为空串：组织列 NOT NULL，无组织存空串。
+		// 哨兵字面量由 TransportBusiConstant.UNASSIGNED_ORG_FILTER 定义，前端与两个 Mapper XML 同步。
+		if (TransportBusiConstant.UNASSIGNED_ORG_FILTER.equals(driver.getOrganizationName())) {
+			queryWrapper.eq(Driver::getOrganizationName, "");
+		} else if (Func.isNotEmpty(driver.getOrganizationName())) {
 			queryWrapper.like(Driver::getOrganizationName, driver.getOrganizationName());
 		}
 		if (Func.isNotEmpty(driver.getStatus())) {
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/TransportVehicleController.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/TransportVehicleController.java
index 37596eb4..a321bdc3 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/TransportVehicleController.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/controller/TransportVehicleController.java
@@ -44,6 +44,7 @@ import org.springblade.core.secure.annotation.PreAuth;
 import org.springblade.core.tool.api.R;
 import org.springblade.core.tool.utils.DateUtil;
 import org.springblade.core.tool.utils.Func;
+import org.springblade.transport.constant.TransportBusiConstant;
 import org.springblade.transport.excel.TransportVehicleExcel;
 import org.springblade.transport.pojo.entity.TransportVehicle;
 import org.springblade.transport.pojo.vo.TransportVehicleExpiryStatVO;
@@ -226,7 +227,11 @@ public class TransportVehicleController extends BladeController {
 		if (Func.isNotEmpty(ids)) {
 			queryWrapper.in(TransportVehicle::getId, Func.toLongList(ids));
 		}
-		if (Func.isNotEmpty(vehicle.getOrganizationName())) {
+		// 「未分配组织」哨兵改判组织为空串：组织列 NOT NULL，无组织存空串。
+		// 哨兵字面量由 TransportBusiConstant.UNASSIGNED_ORG_FILTER 定义，前端与两个 Mapper XML 同步。
+		if (TransportBusiConstant.UNASSIGNED_ORG_FILTER.equals(vehicle.getOrganizationName())) {
+			queryWrapper.eq(TransportVehicle::getOrganizationName, "");
+		} else if (Func.isNotEmpty(vehicle.getOrganizationName())) {
 			queryWrapper.like(TransportVehicle::getOrganizationName, vehicle.getOrganizationName());
 		}
 		if (Func.isNotEmpty(vehicle.getPlateNo())) {
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/DriverMapper.xml b/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/DriverMapper.xml
index 7862dd68..2f1b5e2a 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/DriverMapper.xml
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/DriverMapper.xml
@@ -170,11 +170,12 @@
             AND driver_type = #{driver.driverType}
         </if>
         <if test="driver.organizationName != null and driver.organizationName != ''">
-            <!-- 哨兵值来自前端 tms-erp-web/src/mixins/organization-search.js 的 UNASSIGNED_ORG_FILTER；
-                 改这里必须同步该常量与 TransportVehicleMapper.xml 的同名分支 -->
+            <!-- 「未分配组织」哨兵值定义在 TransportBusiConstant.UNASSIGNED_ORG_FILTER 与前端
+                 tms-erp-web/src/mixins/organization-search.js，改这里必须同步常量与 TransportVehicleMapper.xml 的同名分支。
+                 组织列 NOT NULL，无组织存空串。 -->
             <choose>
                 <when test="'__UNASSIGNED_ORG__'.equals(driver.organizationName)">
-                    AND (organization_name IS NULL OR organization_name = '')
+                    AND organization_name = ''
                 </when>
                 <otherwise>
                     <bind name="organizationNameLike" value="'%' + driver.organizationName + '%'"/>
diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/TransportVehicleMapper.xml b/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/TransportVehicleMapper.xml
index 81988d95..0d5857fd 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/TransportVehicleMapper.xml
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/mapper/TransportVehicleMapper.xml
@@ -117,11 +117,12 @@
     <sql id="QueryCondition">
         is_deleted = 0
         <if test="vehicle.organizationName != null and vehicle.organizationName != ''">
-            <!-- 哨兵值来自前端 tms-erp-web/src/mixins/organization-search.js 的 UNASSIGNED_ORG_FILTER；
-                 改这里必须同步该常量与 DriverMapper.xml 的同名分支 -->
+            <!-- 「未分配组织」哨兵值定义在 TransportBusiConstant.UNASSIGNED_ORG_FILTER 与前端
+                 tms-erp-web/src/mixins/organization-search.js，改这里必须同步常量与 DriverMapper.xml 的同名分支。
+                 组织列 NOT NULL，无组织存空串。 -->
             <choose>
                 <when test="'__UNASSIGNED_ORG__'.equals(vehicle.organizationName)">
-                    AND (organization_name IS NULL OR organization_name = '')
+                    AND organization_name = ''
                 </when>
                 <otherwise>
                     <bind name="organizationNameLike" value="'%' + vehicle.organizationName + '%'"/>