Plastic film mulching cultivation technique has the characteristics of increasing temperature and conserving soil moisture and improving the crop fertility conditions. It is an effective measure to realize the early maturing, high quality, high yield and high economic benefit. However, with the expansion of plastic mulching planting area, the plastic film had a serious impact on the root growth, emergence and yield of crops. The mechanized film recycling is an effective means to solve the problem of residual film pollution. There are many ways of recycling equipment, but from the actual use of view, there are some problems. Aiming at the problems of low film recycling rate and high impurity rate, the idea of putting spading film and picking film together was proposed, and a combined type (synchronous spading and picking up) residual film collector device was designed. By analyzing the mechanism of spade film formation, the parametric equation and the main structural parameters of spalling surface were established. Through the analysis of movement and force of pick-up roller, the necessary conditions for the tine to “tie” the residual film were determined. Design-Export 8.0.6 was used to test the key parameters of the combined residual film pick-up device. The ternary quadratic regression model was established, which included penetrating angle of film releasing shovels, rotational speed of picking roller, forward speed of machine, and film recycling rate and impurity rate. The nonlinear optimization method was used to optimize the influence factors. The results showed that the film recycling rate was 90.3% and the impurity rate was 4.1% when the angle of film releasing shovels was 30°, the rotational speed of picking roller was 120r/min, and the forward speed was 1.0m/s. The film recycling rate was increased by 5.3 percentage points and the impurity rate was decreased by 4.8 percentage points, compared with the spade and tine step by step. Test indicators reached the national and industry standards, and the test results met the design requirements.