Hydraulic balance key water stop shower head

The invention discloses a hydraulically balanced key water stop shower, which relates to the field of bathroom accessories, and comprises a shower body and a key water stop mechanism, the key water stop mechanism comprises a water stop shaft, a pipe fitting and a key assembly, a water passing channel is formed between an outer pipe and an inner pipe of the pipe fitting, one end of the inner pipe is a closed end, and the other end of the inner pipe is movably provided with the water stop shaft; a key assembly enabling the water stop shaft to act is further arranged in a matched mode. And the pipe fitting forms a chamber at the water stop shaft and the closed end and is provided with a vent hole. Preferably, the key assembly comprises a movable rod, a ball-point pen automatic telescopic locking mechanism and an elastic reset piece enabling the water stop shaft to move towards the water outlet port. The rear end of the water stop shaft can be separated from the water inlet port through the closed end, and the re