NOVELTY - Farm waste comprehensive utilization system comprises a septic tank (1) sequentially connected with a preprocessing tank (2), a cutting pump (3) and a measuring-heating tank (4). The measuring-heating tank is connected with a continuous flow stirred-tank reactor (CSTR) (6) through a feeding pump. The CSTR reactor is connected with a discharging tank. The discharging tank is connected with a reflux pump. The reflux pump is respectively connected with the septic tank and a dehydration machine. The dehydration machine is connected with biogas slurry tank and biogas residue storage tank.    USE - Used as farm waste comprehensive utilization system.    ADVANTAGE - The system achieves harmless treatment, realizes recycling of resources, improves farm environment and promotes sustainable development of farm.    DETAILED DESCRIPTION - Farm waste comprehensive utilization system comprises a septic tank (1) sequentially connected with a preprocessing tank (2), a cutting pump (3) and a measuring-heating tank (4). The measuring-heating tank is connected with a continuous flow stirred-tank reactor (CSTR) (6) through a feeding pump. The CSTR reactor is connected with a discharging tank. The discharging tank is connected with a reflux pump. The reflux pump is respectively connected with the septic tank and a dehydration machine. The dehydration machine is respectively connected with a biogas slurry tank and a biogas residue storage tank. The CSTR reactor is connected with a water sealing device. The water sealing device is sequentially connected with a moisture separator, a desulfurization tower, a wet type gas storage cabinet and an electric generator. The electric generator is respectively connected with the CSTR reactor and the measuring-heating tank through heat transmission pipeline. An INDEPENDENT CLAIM is also included for comprehensive utilization of farm waste, (i) introducing farm waste into the septic tank, naturally fermenting for 1-2 days, conveying into the preprocessing tank, and removing suspended substance in the preprocessing tank; (ii) conveying into the cutting pump and removing animal hair and cellulose; (iii) introducing into the measuring-heating tank and heating to 37-45 degrees C; (iv) feeding the processed waste into the CSTR reactor via the feeding pump, adjusting temperature to 42 degrees C and anaerobic fermenting for 10-14 days, and conveying the fermentation liquid into the discharging tank; (v) conveying material liquid into the reflux pump, introducing part of liquid material into the dehydrating machine and dehydrating, and conveying remaining part of the material liquid into the septic tank; (vi) separating material liquid in the dehydration machine into the biogas slurry and biogas residue, and respectively storing in the biogas slurry tank and the biogas residue storage tank; and (vii) conveying gas produced in the CSTR reactor into the water sealing device, separating gas from the steam-water separator, conveying into the desulfurization tower, desulfurizing, introducing into the wet type gas storage cabinet, generating electricity using electric generator, and conveying waste heat into the CSTR reactor and measuring-heating tank for heating.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the farm waste comprehensive utilization system (Drawing includes non-English language text).    Septic tank (1)    Preprocessing tank (2)    Cutting pump (3)    Measuring-heating tank (4)    CSTR reactor (6)