An automatic wheelchair-type feces cleaner without need of undressing and dressing comprises a wheelchair (1). A fully automatic treater (2) and adaptive pants (3) are provided on the wheelchair (1). The fully automatic treater (2) has an excretion duct (213), an excrement collection device (21), a negative pressure device (22), a positive pressure device (23), a hot water device (24), a hot air device (25) and a control device (26). The adaptive pants (3) are provided with an excrement collection region (33) at the crotch, which is provided with an excretion port (34), an inflating pipe (35), a hot water delivery pipe and a hot air delivery pipe. The inlet end of the excretion duct (213) is connected with the excretion port (34) of the collection region (33), and the outlet end of the excretion duct (213) is connected with the collection device (21) which is connected with the negative pressure device (22). The positive pressure device (23), the hot water device (24) and the hot air device (25) are correspondingly connected with the inflating pipe (35), the hot water delivery pipe and the hot air delivery pipe of the collection region (33) via a piping, respectively. With the automatic wheelchair-type feces cleaner without need of undressing and dressing, a user can defecate at any time, which largely expands the range of movement, and the user can defecate and clean up without the help from others.
