In a washing machine of such a structure that a washing drum is pulled out from an external-mounted housing, vibration of the washing drum during dewatering is effectively suppressed. A full-automatic washing machine (1) includes: an external-mounted housing (10) having an inlet/outlet in the front surface of the external-mounted housing; a drawer capable of getting into and getting out of the external-mounted housing (10) through the inlet/outlet and including retainer plates (80) and a door part (90); a washing drum (20) arranged in the drawer through a suspension (60) and including a washing and dewatering drum having a fluid balancer and an outer drum (21) capable of accommodating the washing and dewatering drum in a free rotation manner; sliding rails (100) for enabling the drawer to move rectilinearly relative to the external-mounted housing (10); an acceleration sensor (110) arranged on the drawer; and a control part. The control part obtains inclination of a main body of the full-automatic washing mac