diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/sign/SaSignTemplate.java b/sa-token-core/src/main/java/cn/dev33/satoken/sign/SaSignTemplate.java
index b88c236d..8d63bf25 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/sign/SaSignTemplate.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/sign/SaSignTemplate.java
@@ -315,6 +315,11 @@ public class SaSignTemplate {
 		String nonceValue = paramMap.get(nonce);
 		String signValue = paramMap.get(sign);
 
+		// 三个参数必须全部非空
+		SaSignException.throwByNull(timestampValue, "缺少 timestamp 字段");
+		SaSignException.throwByNull(nonceValue, "缺少 nonce 字段");
+		SaSignException.throwByNull(signValue, "缺少 sign 字段");
+
 		// 依次校验三个参数
 		checkTimestamp(Long.parseLong(timestampValue));
 		if(getSignConfigOrGlobal().getIsCheckNonce()) {