Abstract: Side-film and soil are eroded during the growth of crops and adhere to the side-film, which caused side-film is difficult to recover. In order to improve the recovery rate of side-film, a new profiling mechanism was designed by adopting annelid structure. Static analysis of the mechanism was done by use of ANSYS software, the simulation results show that with the increase of the soil entry angle, the deformation and stress on the profiling film mechanism gradually increase. The maximum deformation is 0.65 mm, which appears at the bottom of the installation column; the maximum stress is 171.55 MPa, in the middle of the installation column position. The three-factor and three-level response surface test was carried out with the machine advancing velocity, the depth of the mechanism into the soil and the angle of the mechanism into the soil as the test factors, the side-film recovery rate and the soil breakage rate as the index. The significance of each factor on the index was analyzed and the factors were optimized.Using the optimization module of Design-Expert software, the best working parameters are determined as follows: the machine advancing velocity is 1.0 m/s, the depth of the mechanism into the soil is 60 mm, and the angle of the mechanism into the soil is 14°. The field test is carried out under this condition, and the test results are edged. The membrane rate is 93.4%, and the soil breaking rate is 94.7%.