The utility model discloses a hand reversing main control valve for a thin seam hydraulic support, which comprises two two-position three-way valves with the same structure, wherein the two-position three-way valve comprises a valve body internally provided with a valve element assembly; the valve element assembly comprises a valve seat, a middle guide sleeve and a screw sleeve which are sequentially mounted; a spring, a spring seat and a liquid intake ball sealer are arranged in the valve seat; a liquid return ball sealer and an ejector rod are arranged in the screw sleeve; a limiting rod is arranged in the core hole of the middle guide sleeve; the liquid intake ball sealer and the liquid return ball sealer are propped against the two ends of the limiting rod respectively; and operating mechanisms are arranged at the extended-out ends of the ejector rods of the two two-position three-way valves with the identical structure. The hand reversing main control valve for the thin seam hydraulic support occupies a small space, is highly air-tight, has a long service life, is highly reliable, and is simple to operate.