A social networking relationships processing method includes: accessing a first forward-relationships set corresponding to a user identification of a first user in multiple data centers; obtaining an inverted-reverse-relationships set corresponding to the user identification of the first user; determining whether a difference between the first forward-relationships set of the first user and the inverted-reverse-relationship set corresponding to the user identification exists; in response to determining that the difference between the forward-relationships set and the inverted-reverse-relationships set exits, identifying a second user that causes the difference; respectively accessing first relationship information of the first user and second relationship information of the second user stored in associated data centers; and updating at least one of the first forward-relationships set of the first user or a second reverse-relationships set of the second user according to the relationship information of the first user and the second user from the associated data centers.