The present invention relates to a multi-channel service request uniform accessing method and system, wherein the method comprises the steps of 1 using at least one customer service background terminal to log in a system service terminal and to register; 2 using at least one user terminal to log in the system service terminal and to send out a session request; 3 using the system service terminal to receive the session request and to distribute the corresponding user terminal for the customer service background terminal to establish a one-to-one correspondence session channel of the customer service background terminal and the user terminal; 4 using the user terminal to instantly communicate with the corresponding customer service background terminal via the corresponding session channel; 5 after the instant communication is ended, using the system service terminal to close the corresponding session channel, and enabling the user terminal to log out the system service terminal automatically; 6 enabling the customer service background terminal to log out the system service terminal, using the system service terminal to clear the relevant information of the customer service background terminal, and ending. According to the present invention, the service quality is convenient to manage and improve uniformly, the service terminal can be reduce to one, and the background data is relatively complete and is convenient to gather and analyze.