A multimedia commerce service processing method includes the steps of receiving a signal for selecting a first product provided by the multimedia commerce service, detecting body size information of a user from login information of an account of the user who uses the multimedia commerce service, generating a first avatar graphic image including the detected body size information of the user and transmitting a signal for outputting an image of the first product in a specific area of the first avatar graphic image to a display device. A multimedia commerce service processing apparatus includes a receiving module configured to sense a signal, a communication module configured to transmit and receive data, a storage module configured to store login information of an account of a user and a controller configured to control operation of the multimedia commerce service processing apparatus.