Method, client agent, terminal and system for adding SNS (social network service) friend

The invention discloses a method, an SNS client agent, a terminal and a system for adding an SNS (social network service) friend. The method comprises the following steps of: reading SNS account information saved in the terminal by the SNS client agent, calling an SNS website open interface through the SNS account information, and adding an SNS account as the friend of a terminal user; the SNS client agent comprises a reading module for reading the SNS account information, and a friend adding module for calling the SNS website open interface to add the SNS account as the friend of the terminal user according to the SNS account information; the terminal comprises the SNS client agent; and the system comprises the terminal and an SNS website. According to the method, the system, the SNS client agent and the terminal for adding the SNS friend, disclosed by the invention, the SNS friend account saved in contacts can be conveniently and quickly added into a corresponding SNS client, and heavy manual operation can be avoided.