The application provides an HTTPS encryption transmission method and device. in the application, the HTTPS service dedicated equipment can determine whether a message comprises a HTTPS service keyword after receiving an access request message sent by client equipment; if the message does not comprise the HTTPS service keyword, an HTTPS redirection message is returned to the client equipment so as to enable the client equipment to send the access request message comprising the HTTPS service keyword; therefore, the encryption transmission of the data between the client equipment and the Web server is guaranteed, and the security of the data transmission is guaranteed.