To provide a portable toilet having a hot-water cleaning device that can easily attach or detach a bucket for keeping fifth, eliminates the need for a wide installation space, and has improved cleaning properties.

The portable toilet is provided with a through hole for allowing a support member where a toilet seat is placed to pass through a bucket for keeping filth in upper and lower directions, and is composed of front and rear support members for dividing and uniting back and forth. At least either of the front and rear support members can slide back and forth, the bucket for keeping filter can be detachable fitted to the front support member, and the toilet seat and the hot-water cleaning device can be fixed to the rear support member.