The present disclosure provides a method of maintaining the continuity of a transmission service and a service center. The method includes: receiving a consumption report from a user equipment, wherein the user equipment receives a first transmission service through a first bearer; in response to receiving a specific request, obtaining user identification information of the user equipment from the specific request; accessing the consumption report corresponding to the user equipment based on the user identification information, and obtaining first service information of the first transmission service from the consumption report; and controlling the user equipment to switch to use a second bearer to receive a second transmission service according to the first service information, wherein the first bearer is one of a unicast bearer and a broadcast bearer, and the second bearer is another of the unicast bearer and the broadcast bearer.