The invention provides an
authentication method and
system for mobile subscribers, which can realize the
password-free registration and login and have advantages of convenience in use, high safety and low cost. The
authentication method for the mobile subscribers of a third-party application of an Andriod
system or an iOS
system comprises the following steps: completing access registration of a third-party application on a safety service platform apparatus; and registering a safety service card application apparatus so as to establish a
user information database; and when a user logs in at a first time, transmitting, by the safety service platform proxy apparatus SDK, a
mobile phone number of a user to the safety service platform apparatus to perform the
authentication, if the
mobile phone number of the user passes the authentication, generating, by the safety service platform apparatus, an exclusive
OpenID, and returning, by the safety service platform apparatus, a
user authentication result and the
OpenID to the third-party application by virtue of the SDK; and when the user logs in at a second time, transmitting, by the SDK, the
OpenID to the safety service platform apparatus to perform the authentication, and if the
OpenId passes the authentication, returning, by the safety service platform apparatus, the
user authentication result and the user
mobile phone number to the third-party application by virtue of the SDK.