diff --git a/src/BusinessCardManagement.java b/src/BusinessCardManagement.java
index de6a39e..c586802 100644
--- a/src/BusinessCardManagement.java
+++ b/src/BusinessCardManagement.java
@@ -2,6 +2,7 @@
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -19,7 +20,10 @@
 
 public class BusinessCardManagement {
 
-	public final Charset CHARSET = java.nio.charset.Charset.forName("Shift_JIS");
+	public final Charset[] CHARSETS = {
+			StandardCharsets.UTF_8,
+			java.nio.charset.Charset.forName("Shift_JIS")
+		};
 
 	private Screen screen;
 	private ScreenTemplates screenTemplates;
@@ -174,7 +178,15 @@
         	File selectedFile = fileChooser.getSelectedFile();
         	Map<String, List<List<String>>> businessCardData = new HashMap<>();
         	try {
-				List<String> lines = Files.readAllLines(selectedFile.toPath(), CHARSET);
+        		List<String> lines = new ArrayList<>();
+        		for (Charset charset: CHARSETS) {
+        			try {
+        				lines = Files.readAllLines(selectedFile.toPath(), charset);
+        				break;
+        			} catch (java.nio.charset.MalformedInputException e) {
+        				continue;
+        			}
+        		}
 				for (int i = 1; i < lines.size(); i++) {
 					String line = lines.get(i);
 					String[] value = parseCSV(line);
@@ -265,7 +277,15 @@
 			if (Files.notExists(path)) {
 				return;
 			}
-			List<String> lines = Files.readAllLines(path, CHARSET);
+			List<String> lines = new ArrayList<>();
+			for (Charset charset : CHARSETS) {
+				try {
+					lines = Files.readAllLines(path, charset);
+					break;
+				} catch (java.nio.charset.MalformedInputException e){
+					continue;
+				}
+ 			}
 			for (String line : lines) {
 				String[] values = parseCSV(line);
 
@@ -370,7 +390,7 @@
 			}
 			sb.deleteCharAt(sb.length() - 1);
 			System.out.println(sb.toString());
-			Files.write(path, sb.toString().getBytes(CHARSET));
+			Files.write(path, sb.toString().getBytes(CHARSETS[0]));
 		} catch (URISyntaxException | IOException e) {
 			e.printStackTrace();
 			JOptionPane.showMessageDialog(mainPanel, "ファイルの保存に失敗しました。");