The invention discloses an agricultural soil sieving machine, which comprises a bottom plate, fixed blocks are fixedly connected to both sides of the bottom of the bottom plate, a first column is fixedly connected to the left side of the top of the bottom plate, and the center of the top of the bottom plate A collection box is movably connected, a second column is fixedly connected to the right side of the top of the bottom plate, and a bearing platform is fixedly connected to the bottom of the left side of the first column. In the present invention, a bearing platform, a first motor, a first rotating shaft, a gear, a rack plate, a screen body, a moving column, a limit block, a spring, a connecting column, a cantilever beam, a second motor, a second rotating shaft, a crushing knife and The controllers cooperate with each other to achieve the effect of high-efficiency soil sieving, which solves the problem that the existing soil sieving machine does not have the function of high-efficiency soil sieving, saves time and effort for farmers when using the soil sifter, and improves the work efficiency of farmers. Thereby the practicability of the soil sieving machine is improved, and it is suitable for popularization and use.