diff --git a/src/Methods/Personal/ImportRawKey.php b/src/Methods/Personal/ImportRawKey.php
new file mode 100644
index 0000000..f2c6722
--- /dev/null
+++ b/src/Methods/Personal/ImportRawKey.php
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * This file is part of web3.php package.
+ *
+ * (c) Kuan-Cheng,Lai <alk03073135@gmail.com>
+ *
+ * @author Peter Lai <alk03073135@gmail.com>
+ * @license MIT
+ */
+
+namespace Web3\Methods\Personal;
+
+use InvalidArgumentException;
+use Web3\Methods\EthMethod;
+use Web3\Validators\PrivateValidator;
+use Web3\Validators\StringValidator;
+use Web3\Formatters\StringFormatter;
+
+class ImportRawKey extends EthMethod
+{
+    /**
+     * validators
+     *
+     * @var array
+     */
+    protected $validators = [
+        PrivateValidator::class, StringValidator::class
+    ];
+
+    /**
+     * inputFormatters
+     *
+     * @var array
+     */
+    protected $inputFormatters = [
+        PrivateValidator::class, StringFormatter::class
+    ];
+
+    /**
+     * outputFormatters
+     *
+     * @var array
+     */
+    protected $outputFormatters = [];
+
+    /**
+     * defaultValues
+     *
+     * @var array
+     */
+    protected $defaultValues = [];
+
+    /**
+     * construct
+     *
+     * @param string $method
+     * @param array $arguments
+     * @return void
+     */
+    // public function __construct($method='', $arguments=[])
+    // {
+    //     parent::__construct($method, $arguments);
+    // }
+}
diff --git a/src/Personal.php b/src/Personal.php
index 66db560..770004d 100644
--- a/src/Personal.php
+++ b/src/Personal.php
@@ -2,9 +2,9 @@
 
 /**
  * This file is part of web3.php package.
- * 
+ *
  * (c) Kuan-Cheng,Lai <alk03073135@gmail.com>
- * 
+ *
  * @author Peter Lai <alk03073135@gmail.com>
  * @license MIT
  */
@@ -27,18 +27,18 @@ class Personal
 
     /**
      * methods
-     * 
+     *
      * @var array
      */
     private $methods = [];
 
     /**
      * allowedMethods
-     * 
+     *
      * @var array
      */
     private $allowedMethods = [
-        'personal_listAccounts', 'personal_newAccount', 'personal_unlockAccount', 'personal_lockAccount', 'personal_sendTransaction'
+        'personal_listAccounts', 'personal_newAccount', 'personal_unlockAccount', 'personal_lockAccount', 'personal_sendTransaction', 'personal_importRawKey'
     ];
 
     /**
@@ -63,7 +63,7 @@ class Personal
 
     /**
      * call
-     * 
+     *
      * @param string $name
      * @param array $arguments
      * @return void
@@ -109,7 +109,7 @@ class Personal
 
     /**
      * get
-     * 
+     *
      * @param string $name
      * @return mixed
      */
@@ -125,7 +125,7 @@ class Personal
 
     /**
      * set
-     * 
+     *
      * @param string $name
      * @param mixed $value
      * @return mixed
@@ -142,7 +142,7 @@ class Personal
 
     /**
      * getProvider
-     * 
+     *
      * @return \Web3\Providers\Provider
      */
     public function getProvider()
@@ -152,7 +152,7 @@ class Personal
 
     /**
      * setProvider
-     * 
+     *
      * @param \Web3\Providers\Provider $provider
      * @return bool
      */
@@ -167,7 +167,7 @@ class Personal
 
     /**
      * batch
-     * 
+     *
      * @param bool $status
      * @return void
      */
diff --git a/src/Validators/PrivateValidator.php b/src/Validators/PrivateValidator.php
new file mode 100644
index 0000000..57bfe8d
--- /dev/null
+++ b/src/Validators/PrivateValidator.php
@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * This file is part of web3.php package.
+ *
+ * (c) Kuan-Cheng,Lai <alk03073135@gmail.com>
+ *
+ * @author Peter Lai <alk03073135@gmail.com>
+ * @license MIT
+ */
+
+namespace Web3\Validators;
+
+use Web3\Validators\IValidator;
+
+class PrivateValidator
+{
+    /**
+     * validate
+     *
+     * @param string $value
+     * @return bool
+     */
+    public static function validate($value)
+    {
+        if (!is_string($value)) {
+            return false;
+        }
+        return (preg_match('/^[a-fA-F0-9]{64}$/', $value) >= 1);
+    }
+}