diff --git a/src/main/java/xyz/zhouxy/plusone/validator/BaseValidator.java b/src/main/java/xyz/zhouxy/plusone/validator/BaseValidator.java
index 336a1e1..7262d8c 100644
--- a/src/main/java/xyz/zhouxy/plusone/validator/BaseValidator.java
+++ b/src/main/java/xyz/zhouxy/plusone/validator/BaseValidator.java
@@ -57,6 +57,12 @@ public abstract class BaseValidator<T> {
         return validator;
     }
 
+    protected final LongValidator<T> ruleForLong(Function<T, Long> getter) {
+        LongValidator<T> validator = new LongValidator<>(getter);
+        this.rules.add(validator::validate);
+        return validator;
+    }
+
     protected final DoubleValidator<T> ruleForDouble(Function<T, Double> getter) {
         DoubleValidator<T> validator = new DoubleValidator<>(getter);
         this.rules.add(validator::validate);
diff --git a/src/main/java/xyz/zhouxy/plusone/validator/LongValidator.java b/src/main/java/xyz/zhouxy/plusone/validator/LongValidator.java
new file mode 100644
index 0000000..ca6ff7a
--- /dev/null
+++ b/src/main/java/xyz/zhouxy/plusone/validator/LongValidator.java
@@ -0,0 +1,35 @@
+package xyz.zhouxy.plusone.validator;
+
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+public class LongValidator<DTO> extends BasePropertyValidator<DTO, Long, LongValidator<DTO>> {
+
+    LongValidator(Function<DTO, Long> getter) {
+        super(getter);
+    }
+
+    public LongValidator<DTO> between(long min, long max) {
+        return between(min, max, String.format("数值不在 %d 和 %d 之间", min, max));
+    }
+
+    public LongValidator<DTO> between(long min, long max, String errMsg) {
+        return between(min, max, convertExceptionCreator(errMsg));
+    }
+
+    public <E extends RuntimeException> LongValidator<DTO> between(long min, long max,
+            Supplier<E> exceptionCreator) {
+        return between(min, max, convertExceptionCreator(exceptionCreator));
+    }
+
+    public <E extends RuntimeException> LongValidator<DTO> between(long min, long max,
+            Function<Long, E> exceptionCreator) {
+        withRule(value -> (value >= min && value < max), exceptionCreator);
+        return this;
+    }
+
+    @Override
+    protected LongValidator<DTO> thisObject() {
+        return this;
+    }
+}
diff --git a/src/main/java/xyz/zhouxy/plusone/validator/MapValidator.java b/src/main/java/xyz/zhouxy/plusone/validator/MapValidator.java
index f6161e2..f86ea7c 100644
--- a/src/main/java/xyz/zhouxy/plusone/validator/MapValidator.java
+++ b/src/main/java/xyz/zhouxy/plusone/validator/MapValidator.java
@@ -51,6 +51,10 @@ public abstract class MapValidator<K, V> extends BaseValidator<Map<K, V>> {
         return ruleForInt(m -> (Integer) m.get(key));
     }
 
+    protected final LongValidator<Map<K, V>> ruleForLong(K key) {
+        return ruleForLong(m -> (Long) m.get(key));
+    }
+
     protected final DoubleValidator<Map<K, V>> ruleForDouble(K key) {
         return ruleForDouble(m -> (Double) m.get(key));
     }