Provided is a living body stimulator capable of not only realizing a low power consumption and a light weight, but also improving the degree of freedom of an outer shape thereof. Each of airbags (3-1) to (3-3) is individually provided with one of air pumps (1-1) to (1-3) and one of air tanks (2-1) to (2-3). As for each of pressurization units (41-1) to (41-3), a pressurized air is supplied from one air pump (1-1) to one airbag (3-1) through one air tank (2-1). A control unit (51) is configured to individually control each of the pressurization units (41-1) to (41-3). Therefore, it is possible to downsize the air pumps (1-1) to (1-3) and air tanks (2-1) to (2-3).