Digital television front-end system and processing method

The invention discloses a digital television front-end system and a digital television front-end processing method. The digital television front-end system comprises an input sub-module, a digital integrated management machine cabinet and an output sub-module, wherein the input sub-module is used for processing an input signal and accessing the processed signal to the digital integrated managementmachine cabinet; the digital integrated management machine cabinet realizes program signal scheduling and parameter reading and writing for the sub-modules according to requirements; the output sub-module is used for converting the signal accessed to the digital integrated management machine cabinet into a signal of a designated type for output. The digital television front-end system integratesa Gigabit switching circuit and a 100 M switching circuit, the 100 M switching circuit is a channel of management software for managing the reading-writing of the sub-modules, and the Gigabit switching circuit is a channel for