Hydraulic control system of multi-folding header, folding header and agricultural harvesting machine

The invention discloses a hydraulic control system of a multi-folding header, a folding header and an agricultural harvesting machine, and the hydraulic control system is characterized in that a sequential action oil path of each oil cylinder is constructed through a first sequence valve, a first stroke valve, a second stroke valve and a third stroke valve; the header can be folded and unfolded according to the set sequence only by controlling the working state of the reversing valve, the problems of collision, interference and the like in the action process are avoided, only the reversing valve is adopted as a hydraulic control element, and compared with an existing sensor control scheme, the control logic is very simple, and the system reliability is greatly improved. Moreover, the header bodies on the two sides are driven by the two oil cylinders to turn over, the 180-degree turning action can be achieved, so that double-layer folding of the header bodies is achieved, the width of the folded header bodies