diff --git a/source/src/main/java/one/nem/lacerta/source/file/FileManager.java b/source/src/main/java/one/nem/lacerta/source/file/FileManager.java
index e7c04605..f5b3ae33 100644
--- a/source/src/main/java/one/nem/lacerta/source/file/FileManager.java
+++ b/source/src/main/java/one/nem/lacerta/source/file/FileManager.java
@@ -37,6 +37,10 @@ public interface FileManager {
     void saveDocument(Document document, String fileName);
     void saveDocument(Document document, Path path);
 
+    Document loadDocument(String fileName);
+    Document loadDocument(Path path);
+
+
     boolean isExist(Path path);
     boolean isExist(String fileName);
 
diff --git a/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java b/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java
index 12c9ebe8..f6c58aed 100644
--- a/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java
+++ b/source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java
@@ -13,6 +13,8 @@ import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
 import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.dom.DOMSource;
@@ -243,6 +245,26 @@ public class FileManagerImpl implements FileManager {
         // TODO-rca 実装する
     }
 
+    @Override
+    public Document loadDocument(String fileName) {
+        try {
+            File file = getFile(fileName);
+            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+            DocumentBuilder builder = factory.newDocumentBuilder();
+            Document document = builder.parse(file);
+            return document;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    @Override
+    public Document loadDocument(Path path) {
+        // TODO-rca 実装する
+        return null;
+    }
+
     @Override
     public boolean isExist(Path path) {
         logger.debug("isExist", "called");