diff --git a/TIASshot/Form1.Designer.cs b/TIASshot/Form1.Designer.cs
index 3469127..f7141dc 100644
--- a/TIASshot/Form1.Designer.cs
+++ b/TIASshot/Form1.Designer.cs
@@ -43,6 +43,7 @@
             this.label7 = new System.Windows.Forms.Label();
             this.txtMultiShotsInterval = new System.Windows.Forms.TextBox();
             this.label8 = new System.Windows.Forms.Label();
+            this.btnOpenDataFolder = new System.Windows.Forms.Button();
             ((System.ComponentModel.ISupportInitialize)(this.picPreview)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.picDisplay)).BeginInit();
             this.SuspendLayout();
@@ -50,9 +51,9 @@
             // btnShotOne
             // 
             this.btnShotOne.Font = new System.Drawing.Font("MS UI Gothic", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(128)));
-            this.btnShotOne.Location = new System.Drawing.Point(12, 176);
+            this.btnShotOne.Location = new System.Drawing.Point(15, 176);
             this.btnShotOne.Name = "btnShotOne";
-            this.btnShotOne.Size = new System.Drawing.Size(271, 47);
+            this.btnShotOne.Size = new System.Drawing.Size(268, 47);
             this.btnShotOne.TabIndex = 0;
             this.btnShotOne.Text = "１枚撮影";
             this.btnShotOne.UseVisualStyleBackColor = true;
@@ -121,9 +122,9 @@
             // 
             this.btnShotMulti.AllowDrop = true;
             this.btnShotMulti.Font = new System.Drawing.Font("MS UI Gothic", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(128)));
-            this.btnShotMulti.Location = new System.Drawing.Point(12, 316);
+            this.btnShotMulti.Location = new System.Drawing.Point(15, 316);
             this.btnShotMulti.Name = "btnShotMulti";
-            this.btnShotMulti.Size = new System.Drawing.Size(271, 49);
+            this.btnShotMulti.Size = new System.Drawing.Size(268, 49);
             this.btnShotMulti.TabIndex = 6;
             this.btnShotMulti.Text = "連続撮影";
             this.btnShotMulti.UseVisualStyleBackColor = true;
@@ -148,17 +149,17 @@
             this.txtMessage.Location = new System.Drawing.Point(15, 45);
             this.txtMessage.Name = "txtMessage";
             this.txtMessage.ReadOnly = true;
-            this.txtMessage.Size = new System.Drawing.Size(271, 26);
+            this.txtMessage.Size = new System.Drawing.Size(268, 26);
             this.txtMessage.TabIndex = 9;
             this.txtMessage.Text = "舌診チャートを設置してください．";
             // 
             // txtSaveFolder
             // 
             this.txtSaveFolder.Font = new System.Drawing.Font("MS UI Gothic", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(128)));
-            this.txtSaveFolder.Location = new System.Drawing.Point(15, 459);
+            this.txtSaveFolder.Location = new System.Drawing.Point(78, 463);
             this.txtSaveFolder.Name = "txtSaveFolder";
             this.txtSaveFolder.ReadOnly = true;
-            this.txtSaveFolder.Size = new System.Drawing.Size(268, 23);
+            this.txtSaveFolder.Size = new System.Drawing.Size(205, 23);
             this.txtSaveFolder.TabIndex = 10;
             // 
             // label3
@@ -250,11 +251,23 @@
             this.label8.TabIndex = 19;
             this.label8.Text = "ミリ秒";
             // 
+            // btnOpenDataFolder
+            // 
+            this.btnOpenDataFolder.Font = new System.Drawing.Font("MS UI Gothic", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(128)));
+            this.btnOpenDataFolder.Location = new System.Drawing.Point(15, 459);
+            this.btnOpenDataFolder.Name = "btnOpenDataFolder";
+            this.btnOpenDataFolder.Size = new System.Drawing.Size(57, 27);
+            this.btnOpenDataFolder.TabIndex = 20;
+            this.btnOpenDataFolder.Text = "開く";
+            this.btnOpenDataFolder.UseVisualStyleBackColor = true;
+            this.btnOpenDataFolder.Click += new System.EventHandler(this.btnOpenDataFolder_Click);
+            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(753, 634);
+            this.Controls.Add(this.btnOpenDataFolder);
             this.Controls.Add(this.label8);
             this.Controls.Add(this.txtMultiShotsInterval);
             this.Controls.Add(this.label7);
@@ -308,6 +321,7 @@
         private System.Windows.Forms.Label label7;
         private System.Windows.Forms.TextBox txtMultiShotsInterval;
         private System.Windows.Forms.Label label8;
+        private System.Windows.Forms.Button btnOpenDataFolder;
     }
 }
 
diff --git a/TIASshot/Form1.cs b/TIASshot/Form1.cs
index 6f4208e..addd421 100644
--- a/TIASshot/Form1.cs
+++ b/TIASshot/Form1.cs
@@ -150,5 +150,14 @@
             btnShotOne.Enabled = enable;
             btnShotMulti.Enabled = enable;
         }
+
+        /// <summary>
+        /// データフォルダを開く
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void btnOpenDataFolder_Click(object sender, EventArgs e) {
+            System.Diagnostics.Process.Start(txtSaveFolder.Text);
+        }
     }
 }