To prevent the damage of laundry by surely and quickly detecting the projection of the laundry from the upper edge end of a washing and dewatering tub during blow drying.

The washing machine includes an abnormality determining means for comparing the duty ratio of PWM signals acquired when the washing and dewatering tub is rotated at a high speed during a tub rotating operation immediately before a certain agitating rotating operation and the duty ratio of the PWM signals acquired when the washing and dewatering tub is rotated at high speed during the tub rotating operation immediately after the agitating rotating operation, and determining abnormality when the latter is larger than the former, and an abnormality coping means for executing prescribed abnormality coping processing when it is determined that it is an abnormal state by the abnormality determining means.