Provided is a hydrogen gas aspirator which can be carried by a user and freely carried by the user, and which can be supplied with hydrogen gas by adjusting concentrations of the aspirator. The hydrogen gas aspirator for generating and aspirating hydrogen gas includes: a first hydrogen gas aspirator body having at least a hollow interior; a second hydrogen gas aspirator body having an aspirator hollow layer and an aspirator hollow layer connected to each other by a low pressure check valve; and a variable pressure control valve capable of adjusting and passing hydrogen gas concentrations between the first and second hydrogen gas aspirator bodies, wherein substances that hydrogen generate and react by contacting water and water for reaction can be placed on the aspirator hollow layer inside the second hydrogen gas aspirator body.