The invention provides a flush toilet convenient for an arm-less disabled person to take off trousers while going to the toilet, which comprises an anti-slip treading plate, a flush toilet body, a flush toilet water tank, side surface mounting slots, mounting plates, a trousers take-off assisting mechanism, a connecting rod, a toilet cover plate, a toilet washer and a trousers pushing support rod,wherein the side surface mounting slots are arranged at the side surface of the flush toilet body, the number of the side surface mounting slots is two, and the two side surface mounting slots are symmetrically distributed by taking a center line of the surface of the flush toilet body as a symmetric line. The invention relates to the field of the disabled. The flush toilet convenient for the arm-less disabled person to take off the trousers while going to the toilet is provided with the trousers pushing support rod and a crotch trousers pushing arc-shaped hook rod, so that if the arm-less person feels that the trousers are not completely taken off, the arm-less person can hang the edge of the taken-off trousers on the crotch trousers pushing arc-shaped hook rod on the trousers pushing support rod while sitting on the toilet washer and then moves the body backwards so as to completely take off the trousers, thereby providing more convenience to the arm-less person for taking off the trousers while going to the toilet.