The utility model discloses a manhole cover plate for subway maintenance. The cover plate comprises a cover plate panel, a first bracket angle steel (1) and a second bracket angle steel (3), the two horizontal edges of the lower end face of the cover plate panel are fixedly connected with first support angle steel (1) respectively. The other two vertical edges of the manhole cover plate are fixedly connected with second support angle steel (3) respectively, first support angle steel open holes (2) are formed in the two ends of the first support angle steel (1) on one side respectively, and thefirst support angle steel open holes (2) are fixedly connected with protruding fixing points embedded in civil engineering after the manhole cover plate is opened. A plurality of groups of handrail steel bars (7) parallel to the first bracket angle steel (1) are arranged below the cover plate panel; and two ends of the handrail steel bars (7) are welded and fixed with the lower end surface of thecover plate panel. Maintenance personnel can go in and out of the manhole very conveniently, meanwhile, the manhole is flush with the indoor ground after being installed, movement of various carts ina subway is not affected, and the manhole cover is suitable for various maintenance manholes in the subway.