How to use token in simple sign up form

I'm assuming by token you mean CSRF? How are you constructing your forms? If you're using the form builder you can do something similar to the below:

    $securityToken = new \Phalcon\Forms\Element\Hidden('securityToken');
    $securityToken->addValidator(new \Phalcon\Validation\Validator\Identical(array(
        'message'   => 'CSRF validation failed',
        'value' => $this->security->getSessionToken()
    )));

    $this->add($securityToken);

my code is:

add form token like this:

$this->add(new Hidden('token', array(
            'name' => $this->security->getTokenKey(),
            'value' => $this->security->getToken()
        )));

add form token to html like this:

 <form role="form" method="post" action="{{ url("user/save") }}" enctype="multipart/form-data" >
                                    {{ form.render("token") }}

add token check to controller like this:

if (!$this->security->checkToken()) {
                return $this->dispatcher->forward(array(
                        'controller' => 'user',
                        'action' => 'index'
                    ));
            }

but return always true! and not worked

Have you setup the Session service? See: https://docs.phalcon.io/en/latest/reference/security.html#cross-site-request-forgery-csrf-protection

yes i have, exactly use this structur in my code, but always tokecheck return true!!!!