The present invention relates to the technical field of digital televisions and provides a method of processing high code rate transmission of a digital television. The method comprises the following steps: receiving a high code rate transport stream; according to a filter condition configured by a user, filtering transport stream packets in the high code rate transport stream to obtain a low code rate transport stream; and transmitting the low code rate transport stream. The embodiment of the present invention adopts a method of filtering transport stream packets to solve the technical problem in the art in which the technology increasing the transmission efficiency cannot be applied to a machine-card separation solution, such that a high code rate transport stream can be converted to a low code rate transport stream easily and quickly, thereby greatly increasing the utilization rate of transmission bandwidth, and moreover, the entire converting process can be done simultaneously with the user viewing process, which is especially suitable for the transmission of a machine-card separation solution such as an integrated digital television.