diff --git a/internal/entity/models/zhipu-ai.go b/internal/entity/models/zhipu-ai.go
index fc2d3c8057..a40e7ab2a3 100644
--- a/internal/entity/models/zhipu-ai.go
+++ b/internal/entity/models/zhipu-ai.go
@@ -530,7 +530,7 @@ func (z *ZhipuAIModel) Embed(modelName *string, texts []string, apiConfig *APICo
 	reqBody := map[string]interface{}{}
 	reqBody["model"] = modelName
 	reqBody["input"] = texts
-	if embeddingConfig.Dimension > 0 {
+	if embeddingConfig != nil && embeddingConfig.Dimension > 0 {
 		reqBody["dimensions"] = embeddingConfig.Dimension
 	}