Anti-fake bottle cap

The utility model relates to the technical field of bottle body anti-counterfeiting caps, in particular to an anti-counterfeiting bottle cap, which comprises a lower cap, an upper cap, a lower cap, a cover body and a cover body. The lower cover seals the bottle opening and is provided with an outflow nozzle, and an outflow sheet for controlling the outflow amount is arranged in the outflow nozzle; the upper cover is connected with the lower cover, can be opened and closed relative to the lower cover and is provided with an upper retaining ring correspondingly buckled with the lower retaining ring; the upper cover or the lower cover is provided with an anti-fake plate structure, and the anti-fake plate structure prevents the upper cover from being opened relative to the lower cover. The upper cover and the lower cover are matched, the anti-counterfeiting plate structure is used for preventing counterfeiting so as to guarantee reliability, meanwhile, the outflow nozzle structure is arranged between the upper co