diff --git a/src/Neo/Persistence/IReadOnlyStore.cs b/src/Neo/Persistence/IReadOnlyStore.cs
index 134b5b3ade..015a35a0a3 100644
--- a/src/Neo/Persistence/IReadOnlyStore.cs
+++ b/src/Neo/Persistence/IReadOnlyStore.cs
@@ -24,7 +24,7 @@ public interface IReadOnlyStore
         /// </summary>
         /// <param name="keyOrPrefix">The key(i.e. start key) or prefix to be sought.</param>
         /// <param name="direction">The direction of seek.</param>
-        /// <returns>An enumerator containing all the entries after seeking.</returns>
+        /// <returns>An enumerator containing all the entries after (Forward) or before(Backward) seeking.</returns>
         IEnumerable<(byte[] Key, byte[] Value)> Seek(byte[] keyOrPrefix, SeekDirection direction);
 
         /// <summary>
diff --git a/src/Plugins/LevelDBStore/IO/Data/LevelDB/Helper.cs b/src/Plugins/LevelDBStore/IO/Data/LevelDB/Helper.cs
index ff15c44377..de3e744750 100644
--- a/src/Plugins/LevelDBStore/IO/Data/LevelDB/Helper.cs
+++ b/src/Plugins/LevelDBStore/IO/Data/LevelDB/Helper.cs
@@ -20,6 +20,8 @@ public static class Helper
     {
         public static IEnumerable<(byte[], byte[])> Seek(this DB db, ReadOptions options, byte[] keyOrPrefix, SeekDirection direction)
         {
+            if (keyOrPrefix == null) keyOrPrefix = [];
+
             using Iterator it = db.CreateIterator(options);
             if (direction == SeekDirection.Forward)
             {
diff --git a/tests/Neo.Plugins.Storage.Tests/StoreTest.cs b/tests/Neo.Plugins.Storage.Tests/StoreTest.cs
index ac1c8dc5ce..025040af8f 100644
--- a/tests/Neo.Plugins.Storage.Tests/StoreTest.cs
+++ b/tests/Neo.Plugins.Storage.Tests/StoreTest.cs
@@ -301,6 +301,20 @@ private void TestStorage(IStore store)
                 CollectionAssert.AreEqual(new byte[] { 0x01 }, entries[0].Value);
                 CollectionAssert.AreEqual(new byte[] { 0x00, 0x00, 0x00 }, entries[1].Key);
                 CollectionAssert.AreEqual(new byte[] { 0x00 }, entries[1].Value);
+
+                // Seek null
+                entries = store.Seek(null, SeekDirection.Forward).ToArray();
+                Assert.AreEqual(3, entries.Length);
+                CollectionAssert.AreEqual(new byte[] { 0x00, 0x00, 0x00 }, entries[0].Key);
+                CollectionAssert.AreEqual(new byte[] { 0x00, 0x00, 0x01 }, entries[1].Key);
+                CollectionAssert.AreEqual(new byte[] { 0x00, 0x01, 0x02 }, entries[2].Key);
+
+                // Seek empty
+                entries = store.Seek([], SeekDirection.Forward).ToArray();
+                Assert.AreEqual(3, entries.Length);
+                CollectionAssert.AreEqual(new byte[] { 0x00, 0x00, 0x00 }, entries[0].Key);
+                CollectionAssert.AreEqual(new byte[] { 0x00, 0x00, 0x01 }, entries[1].Key);
+                CollectionAssert.AreEqual(new byte[] { 0x00, 0x01, 0x02 }, entries[2].Key);
             }
         }