Fecha de publicación: 08/06/2021 Fuente: Wipo Tobacco Agriculture The invention discloses a crop mulching film uncovering method. The crop mulching film uncovering method comprises the steps that S1, soil pressed on a mulching film is turned out of a film surface through a film uncovering and soil unloading part; S2, film rolling tension is applied to the mulching film by a film rolling mechanism, the mulching film is rolled, and the film rolling mechanism is connected with a transmission mechanism; and in the step S2, when the film uncovering resistance is larger than a set value, the transmission mechanism is switched from the transmission state to the interruption state, and the film rolling mechanism stops rotating. According to the crop mulching film uncovering method, when the mulching film is uncovered, the film uncovering and soil unloading part can be used for uncovering the pressed mulching film and unloading the film pressing soil, the film uncovering resistance is reduced, and therefore the situation that the mulching film is broken due to the fact that the resistance is too large is avoided; and by means of the tension-adjustable transmission mechanism, proper tension can be adjusted according to changes of resistance and tension of a film rolling roller, film rolling tension stability is guaranteed, film breaking is avoided, and smooth film uncovering is achieved through dual control and mutual cooperation of the film uncovering soil unloading part and the tension-adjustable transmission mechanism.