The invention relates to a water injection well operation hanging type water distributor blowout prevention blockage device. The objective of the invention is mainly to solve the problem of influence on environment protection caused by overflow in an oil outgoing pipe in injection well construction. The water injection well operation hanging type water distributor blowout prevention blockage device is characterized in that the upper part of a blockage device upper body (2) is connected with a rope socket (1); a control rod (6) is arranged in the center holes of the blockage device upper body (2) and a blockage device middle body (8); the blockage device upper body (2) is sleeved with a plugging bearing seat (3), a clamp spring (4) and a spring (5) sequentially from top to bottom; a locking mechanism (7) is fixed in the blockage device middle body (8) through a pin shaft; and unidirectional contraction supporting claws (9) are fixed in a blockage device lower body (10) through a pin shaft. With the water injection well operation hanging type water distributor blowout prevention blockage device of the invention adopted, work overflow discharge can be decreased, and construction environment can be protected from being polluted.