The invention relates to a design of a temperature-controlled pressure-controlled large-scale biogas digester fermentation array. The design is characterized in that: the design comprises at least one biogas digester; at least two chain wheels (1) are installed in each biogas digester; a conveying chain (2) is installed on the chain wheels (1); at least one mesh cage (3) is suspended on the conveying chain (2) so as to contain biogas fermentation raw materials; a chain wheel shaft of one of the chain wheels (1) and a motor are in transmission connection through a transmission mechanism; the top of each biogas digester is provided with a material inlet, and the bottom of each biogas digester is provided with a biogas slurry outlet; the design also comprises a control unit; the control unit comprises a main controller; the main controller is connected to a data collector installed at the bottom of the biogas digester; and the main controller is connected to a controller of the motor. The design of the temperature-controlled pressure-controlled large-scale biogas digester fermentation array is provided. By adoption of the design, straw of crops and feces of a livestock farm are treated comprehensively, waste materials are turned into things of value, contamination sources are eliminated, and a part of an energy problem is solved.