To provide a massage machine by which pressure is easily and finely adjusted through the use of body weight, and which is attached/detached without using hands since an outer shell is arranged and is inexpensively supplied.

A massage chamber (4) having an air chamber (2) is arranged inside the outer shell (1). A foot (3) is put into the massage chamber (4), so as to add the body weight. Then the air of the air chamber (2) is supplied to the massage chamber (4) by the body weight, so as to pressurize the foot (3). Thus, a massage effect is generated.