The invention discloses a token passing method applied to a digital home network. The method includes the steps that all terminals in the digital home network are divided into N classes according to a preset priority, wherein the different types of terminals correspond to different token acquisition probabilities in a token bus networking protocol; all the terminals transmit data in the digital home network according to the respective token acquisition probabilities. According to the method, by dividing the terminals according to the priority, it is achieved that the terminals transmit the data in the digital home network according to the respective token acquisition probabilities, and accordingly the QoS of the terminals is guaranteed when needed.