Mainly used in tractor implement control. The multi-way valve is a triple integral structure with compact structure, light weight and large flow rate; the lift link integrates a motorized check valve and an operation positioning device, which effectively controls the movement of the lift cylinder of the rear linkage mechanism of the tractor; at the same time, the lift link integrates The automatic reset device is installed, which can make the multi-way valve automatically jump back to the neutral position under the set pressure, reduce the system heating and reduce the energy consumption; all the working links are equipped with single and double-acting oil cylinder changeover switches, which can meet the requirements of the tractor to adapt to multiple implements demand.