The invention is applicable to the technical field of networks, and provides a service response method and a terminal thereof. The service response method comprises the following steps: obtaining a service request sent by a user terminal; based on the service request, determining a service response parameter corresponding to the service request; sending a connection termination signal to the userterminal; receiving a resource release instruction returned by the user terminal according to the connection termination signal, and changing the working state of a corresponding port performing communication with the user terminal into an idle state; calling a third party interface indicated in the service response parameter, and making response to the service request via the third party interface to generate a processing result corresponding to the service request; sending a communication connection request to the user terminal to establish a communication connection with the user terminal;and returning the processing result to the user terminal. By adoption of the service response method provided by the invention, the problems of low success rate of the existing service response methodto make response to the service response and low utilization rate of network resources are solved.