The invention belongs to the technical field of agricultural machinery, and particularly relates to a belt-shaped seedbed stubble clearing device. The device is composed of a soil cutting and digging device, a soil separating device and a power transmission mechanism which are installed on a machine frame, wherein the soil cutting and digging mechanism is composed of a machine frame front beam connecting plate, an adjusting spring, a mechanism adjusting rod set, a soil cutting disc assembly, a soil cutting plate and a soil cutting plate adjusting rod set, the soil separating device is composed of a grid fixing plate, a primary soil separating mechanism and a secondary soil separating mechanism, and the power transmission mechanism is composed of a soil separating power chain wheel, a seeding power chain wheel, a middle chain wheel shaft, a transmission chain and a transmission chain wheel. When a seeding machine moves forwards, the soil layer in a belt-shaped seeding zone is cut and conveyed to the soil separating mechanism through the soil cutting and separating device, a primary soil separating wheel and a secondary soil separating wheel are driven by the chain wheels and chains to rotate, so that soil is separated from straw and stubble in a seedbed, and then a seed channel is pressed by a pressing device, so that a sound seedbed environment is created.