The invention discloses a multi-way valve with a priority valve on a first linkage, and solves the problems of complicated structure, large size and high control difficulty in a traditional agricultural machinery control system. The multi-way valve comprises a main valve and an operation rod; the operation rod is arranged in the main valve, and is slidingly matched with the main valve; the main valve is provided with the priority valve and a main overflow valve; a main pressure oil port, an oil return port, a first working oil port, a second working oil port and a lower communication working port are formed in the main valve; the main overflow valve is arranged between the main pressure oil port and the oil return port; and the operation rod has a first state of enabling the main pressureoil port to communicate with the first working oil port by the priority valve, a second state of enabling the main pressure oil port to communicate with the lower communication working port, and a third state of enabling the main pressure oil port to communicate with the second working oil port by the priority valve. The multi-way valve is small in product size, simple in structure, convenient toassemble, reliable in control, fast in response and long in service life.