diff --git a/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go b/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
index 1e4ceaddf..588a13659 100644
--- a/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
+++ b/plugins/wasm-go/extensions/ai-proxy/provider/bedrock.go
@@ -13,6 +13,7 @@ import (
 	"hash/crc32"
 	"io"
 	"net/http"
+	"net/url"
 	"strconv"
 	"strings"
 	"time"
@@ -22,6 +23,8 @@ import (
 	"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
 	"github.com/higress-group/proxy-wasm-go-sdk/proxywasm"
 	"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
+	"github.com/tidwall/gjson"
+	"github.com/tidwall/sjson"
 )
 
 const (
@@ -607,6 +610,11 @@ func (b *bedrockProvider) insertHttpContextMessage(body []byte, content string,
 }
 
 func (b *bedrockProvider) TransformRequestBodyHeaders(ctx wrapper.HttpContext, apiName ApiName, body []byte, headers http.Header) ([]byte, error) {
+	if gjson.GetBytes(body, "model").Exists() {
+		rawModel := gjson.GetBytes(body, "model").String()
+		encodedModel := url.QueryEscape(rawModel)
+		body, _ = sjson.SetBytes(body, "model", encodedModel)
+	}
 	switch apiName {
 	case ApiNameChatCompletion:
 		return b.onChatCompletionRequestBody(ctx, body, headers)
@@ -901,7 +909,6 @@ func (b *bedrockProvider) setAuthHeaders(body []byte, headers http.Header) {
 
 func (b *bedrockProvider) generateSignature(path, amzDate, dateStamp string, body []byte) string {
 	hashedPayload := sha256Hex(body)
-	path = urlEncoding(path)
 
 	endpoint := fmt.Sprintf(bedrockDefaultDomain, b.config.awsRegion)
 	canonicalHeaders := fmt.Sprintf("host:%s\nx-amz-date:%s\n", endpoint, amzDate)
@@ -918,16 +925,6 @@ func (b *bedrockProvider) generateSignature(path, amzDate, dateStamp string, bod
 	return signature
 }
 
-func urlEncoding(rawStr string) string {
-	encodedStr := strings.ReplaceAll(rawStr, ":", "%3A")
-	encodedStr = strings.ReplaceAll(encodedStr, "+", "%2B")
-	encodedStr = strings.ReplaceAll(encodedStr, "=", "%3D")
-	encodedStr = strings.ReplaceAll(encodedStr, "&", "%26")
-	encodedStr = strings.ReplaceAll(encodedStr, "$", "%24")
-	encodedStr = strings.ReplaceAll(encodedStr, "@", "%40")
-	return encodedStr
-}
-
 func getSignatureKey(key, dateStamp, region, service string) []byte {
 	kDate := hmacSha256([]byte("AWS4"+key), dateStamp)
 	kRegion := hmacSha256(kDate, region)