diff --git a/internal/domains/api/dto/api_request_dto.go b/internal/domains/api/dto/api_request_dto.go
index 24858d9..46860cc 100644
--- a/internal/domains/api/dto/api_request_dto.go
+++ b/internal/domains/api/dto/api_request_dto.go
@@ -200,8 +200,9 @@ type QCXG3M7ZReq struct {
 	PlateColor string `json:"plate_color" validate:"omitempty"`
 }
 type QCXG7K2NReq struct {
-	PlateNo string `json:"plate_no" validate:"required"`
-	Name    string `json:"name" validate:"required,min=1,validName"`
+	PlateNo   string `json:"plate_no" validate:"required"`
+	Name      string `json:"name" validate:"required,min=1,validName"`
+	PlateType string `json:"plate_type" validate:"omitempty,oneof=01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 20 21 22 23 24 38 51 52"`
 }
 type QCXG3B8ZReq struct {
 	PlateNo string `json:"plate_no" validate:"required"`
diff --git a/internal/domains/api/services/processors/qcxg/qcxg7k2n_plate_type.go b/internal/domains/api/services/processors/qcxg/qcxg7k2n_plate_type.go
new file mode 100644
index 0000000..fbc540e
--- /dev/null
+++ b/internal/domains/api/services/processors/qcxg/qcxg7k2n_plate_type.go
@@ -0,0 +1,53 @@
+package qcxg
+
+import "strings"
+
+const defaultPlateType = "02"
+
+// plateTypeToPlateColor 将车牌类型编码转换为 ETC 人车关系核验所需的车牌颜色。
+func plateTypeToPlateColor(plateType string) string {
+	code := normalizePlateType(plateType)
+	if color, ok := plateTypePlateColorMap[code]; ok {
+		return color
+	}
+	return "0"
+}
+
+// normalizePlateType 归一化车牌类型，空值默认小型汽车（02）。
+func normalizePlateType(plateType string) string {
+	code := strings.TrimSpace(plateType)
+	if code == "" {
+		return defaultPlateType
+	}
+	return code
+}
+
+// plateTypePlateColorMap 车牌类型 -> ETC 车牌颜色
+// 0蓝 1黄 2黑 3白 4渐变绿 5黄绿双拼 6蓝白渐变 7临时 11绿 12红
+var plateTypePlateColorMap = map[string]string{
+	"01": "1",  // 大型汽车 -> 黄色
+	"02": "0",  // 小型汽车 -> 蓝色
+	"03": "2",  // 使馆汽车 -> 黑色
+	"04": "2",  // 领馆汽车 -> 黑色
+	"05": "2",  // 境外汽车 -> 黑色
+	"06": "2",  // 外籍汽车 -> 黑色
+	"07": "1",  // 普通摩托车 -> 黄色
+	"08": "0",  // 轻便摩托车 -> 蓝色
+	"09": "2",  // 使馆摩托车 -> 黑色
+	"10": "2",  // 领馆摩托车 -> 黑色
+	"11": "2",  // 境外摩托车 -> 黑色
+	"12": "2",  // 外籍摩托车 -> 黑色
+	"13": "1",  // 低速车 -> 黄色
+	"14": "1",  // 拖拉机 -> 黄色
+	"15": "1",  // 挂车 -> 黄色
+	"16": "1",  // 教练汽车 -> 黄色
+	"17": "1",  // 教练摩托车 -> 黄色
+	"20": "7",  // 临时入境汽车 -> 临时牌照
+	"21": "7",  // 临时入境摩托车 -> 临时牌照
+	"22": "7",  // 临时行驶车 -> 临时牌照
+	"23": "3",  // 警用汽车 -> 白色
+	"24": "3",  // 警用摩托 -> 白色
+	"38": "0",  // 预留 -> 蓝色
+	"51": "5",  // 新能源大型车 -> 黄绿双拼色
+	"52": "11", // 新能源小型车 -> 绿色
+}
diff --git a/internal/domains/api/services/processors/qcxg/qcxg7k2n_plate_type_test.go b/internal/domains/api/services/processors/qcxg/qcxg7k2n_plate_type_test.go
new file mode 100644
index 0000000..d4a6485
--- /dev/null
+++ b/internal/domains/api/services/processors/qcxg/qcxg7k2n_plate_type_test.go
@@ -0,0 +1,34 @@
+package qcxg
+
+import "testing"
+
+func TestPlateTypeToPlateColor(t *testing.T) {
+	tests := []struct {
+		plateType string
+		want      string
+	}{
+		{"", "0"},
+		{"02", "0"},
+		{"01", "1"},
+		{"52", "11"},
+		{"51", "5"},
+		{"23", "3"},
+		{"22", "7"},
+		{"99", "0"},
+	}
+
+	for _, tt := range tests {
+		if got := plateTypeToPlateColor(tt.plateType); got != tt.want {
+			t.Fatalf("plateTypeToPlateColor(%q) = %q, want %q", tt.plateType, got, tt.want)
+		}
+	}
+}
+
+func TestNormalizePlateType(t *testing.T) {
+	if got := normalizePlateType(""); got != "02" {
+		t.Fatalf("normalizePlateType empty = %q, want 02", got)
+	}
+	if got := normalizePlateType(" 51 "); got != "51" {
+		t.Fatalf("normalizePlateType trim = %q, want 51", got)
+	}
+}
diff --git a/internal/domains/api/services/processors/qcxg/qcxg7k2n_processor.go b/internal/domains/api/services/processors/qcxg/qcxg7k2n_processor.go
index c283cff..83c7697 100644
--- a/internal/domains/api/services/processors/qcxg/qcxg7k2n_processor.go
+++ b/internal/domains/api/services/processors/qcxg/qcxg7k2n_processor.go
@@ -22,11 +22,15 @@ func ProcessQCXG7K2NRequest(ctx context.Context, params []byte, deps *processors
 		return nil, errors.Join(processors.ErrInvalidParam, err)
 	}
 
-	data, err := deps.ShujubaoService.CallAPI(ctx, "/communication/personal/10093", map[string]interface{}{
-		"key":   "a2f32fc54b44ebc85b97a2aaff1734ec",
-		"carNo": paramsDto.PlateNo,
-		"name":  paramsDto.Name,
-	})
+	plateType := normalizePlateType(paramsDto.PlateType)
+	etcParams := map[string]interface{}{
+		"key":        "a2f32fc54b44ebc85b97a2aaff1734ec",
+		"carNo":      paramsDto.PlateNo,
+		"name":       paramsDto.Name,
+		"plateColor": plateTypeToPlateColor(paramsDto.PlateType),
+	}
+
+	data, err := deps.ShujubaoService.CallAPI(ctx, "/communication/personal/10093", etcParams)
 	if err == nil {
 		respBytes, marshalErr := json.Marshal(data)
 		if marshalErr != nil {
@@ -45,8 +49,9 @@ func ProcessQCXG7K2NRequest(ctx context.Context, params []byte, deps *processors
 		return nil, errors.Join(processors.ErrSystem, errors.New("海宇API服务未初始化"))
 	}
 	respBytes, err := deps.HaiyuapiService.CallAPI(ctx, "QCXGX2X6", map[string]interface{}{
-		"plate_no": paramsDto.PlateNo,
-		"name":     paramsDto.Name,
+		"plate_no":     paramsDto.PlateNo,
+		"name":         paramsDto.Name,
+		"vehicle_type": plateType,
 	})
 	if err != nil {
 		if errors.Is(err, haiyuapi.ErrNotFound) {