Hydraulic system of shear fork mechanism, control method and operation machine

The invention relates to the technical field of hydraulic systems, and provides a hydraulic system of a shear fork mechanism, a control method and an operation machine, the hydraulic system of the shear fork mechanism comprises an oil supply assembly, an execution assembly and a control assembly; the execution assembly comprises a first execution element and a second execution element, the first execution element is connected with the oil supply assembly, and a rodless cavity of the second execution element is connected with a rod cavity of the first execution element; the control assembly is arranged on an oil way between the first execution element and the oil supply assembly and used for controlling the first execution element to execute corresponding actions so that the first execution element can control the second execution element to execute corresponding actions synchronously. Synchronous lifting or descending of the shear fork mechanism can be guaranteed, and the situation that the service life of th