diff --git a/h2_playermanager/src/main/java/mc/core/h2db/H2PlayerSerializer.java b/h2_playermanager/src/main/java/mc/core/h2db/H2PlayerSerializer.java
new file mode 100644
index 0000000..80102cd
--- /dev/null
+++ b/h2_playermanager/src/main/java/mc/core/h2db/H2PlayerSerializer.java
@@ -0,0 +1,39 @@
+package mc.core.h2db;
+
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.support.GeneratedKeyHolder;
+import org.springframework.jdbc.support.KeyHolder;
+
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+public class H2PlayerSerializer {
+    private static final String SQL_INSERT = "INSERT INTO players " +
+            "(uuid, name, location_x, location_y, location_z, location_yaw, location_pitch, location_world) " +
+            "VALUES (?, ?, ?, ?, ?, ?, ?, ?)";
+
+    public static void serialize(final H2Player player, final JdbcTemplate jdbcTemplate) throws SQLException {
+        KeyHolder keyHolder = new GeneratedKeyHolder();
+        int affectedRows = jdbcTemplate.update(connection -> {
+            PreparedStatement stmt = connection.prepareStatement(SQL_INSERT, Statement.RETURN_GENERATED_KEYS);
+
+            stmt.setString(1, player.getUuid().toString());
+            stmt.setString(2, player.getName());
+            stmt.setDouble(3, player.getLocation().getX());
+            stmt.setDouble(4, player.getLocation().getY());
+            stmt.setDouble(5, player.getLocation().getZ());
+            stmt.setFloat(6, player.getLocation().getYaw());
+            stmt.setFloat(7, player.getLocation().getPitch());
+            stmt.setString(8, player.getLocation().getWorld().getName());
+
+            return stmt;
+        }, keyHolder);
+
+        if (affectedRows == 0) {
+            throw new SQLException("Serialize player failed, no rows affected.");
+        }
+
+        player.setId(keyHolder.getKey().intValue());
+    }
+}
diff --git a/h2_playermanager/src/test/java/mc/core/h2db/TestH2Database.java b/h2_playermanager/src/test/java/mc/core/h2db/TestH2Database.java
index 69b6b12..1636884 100644
--- a/h2_playermanager/src/test/java/mc/core/h2db/TestH2Database.java
+++ b/h2_playermanager/src/test/java/mc/core/h2db/TestH2Database.java
@@ -1,5 +1,7 @@
 package mc.core.h2db;
 
+import mc.core.EntityLocation;
+import mc.core.world.World;
 import org.apache.commons.io.IOUtils;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -11,16 +13,37 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import javax.annotation.PostConstruct;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
+import java.sql.SQLException;
+import java.util.UUID;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
 
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration(locations = {"classpath:springTest.xml"})
 public class TestH2Database {
     @Autowired
     private JdbcTemplate jdbcTemplate;
+    private World mockWorld;
+
+    private void createMockWorld() {
+        mockWorld = mock(World.class);
+        when(mockWorld.getName()).thenReturn("mock_world");
+    }
 
     @PostConstruct
     public void init() throws IOException {
         jdbcTemplate.execute(IOUtils.resourceToString("/sqls/create_tables.sql", StandardCharsets.UTF_8));
+        createMockWorld();
+    }
+
+    private H2Player buildPlayer(final String name, final EntityLocation location) {
+        H2Player player = new H2Player();
+        player.setUuid(UUID.randomUUID());
+        player.setName(name);
+        player.setLocation(location.clone());
+        return player;
     }
 
     @Test
@@ -34,5 +57,23 @@ public class TestH2Database {
         jdbcTemplate.execute("SELECT COUNT(*) FROM players");
     }
 
+    @Test
+    public void testSerialize() throws SQLException {
+        final H2Player player = buildPlayer("player1", new EntityLocation(1.5d, 6.8d, 0.01d, 0f, 36.9f, mockWorld));
+        H2PlayerSerializer.serialize(player, jdbcTemplate);
 
+        assertEquals(1, player.getId());
+
+        final String sql = "SELECT * FROM players WHERE id = ?";
+        jdbcTemplate.query(sql, new Object[]{player.getId()}, (resultSet) -> {
+            assertEquals(player.getId(), resultSet.getInt("id"));
+            assertEquals(player.getName(), resultSet.getString("name"));
+            assertEquals(player.getLocation().getX(), resultSet.getDouble("location_x"), 0.01d);
+            assertEquals(player.getLocation().getY(), resultSet.getDouble("location_y"), 0.01d);
+            assertEquals(player.getLocation().getZ(), resultSet.getDouble("location_z"), 0.01d);
+            assertEquals(player.getLocation().getYaw(), resultSet.getFloat("location_yaw"), 0.01f);
+            assertEquals(player.getLocation().getPitch(), resultSet.getFloat("location_pitch"), 0.01f);
+            assertEquals(player.getLocation().getWorld().getName(), resultSet.getString("location_world"));
+        });
+    }
 }