The invention relates to an implementation method for a secure internet phone based on a secure socket layer (SSL). According to the method, a secure encryption call is conveniently provided by utilizing the security of an SSL protocol, and the problem that the internet phone is easily subjected to security threats of wiretapping, viruses, attacks and the like is solved. The method comprises main functional modules for user management, address inquiry, security link establishment, certificate management and the like. At present, most browsers are preinstalled with the SSL. The method needs small change in the configuration at a client side and fewer servers, so that the method is easy to implement and has low cost.