To provide a portable toilet device with a transferring function which allows even women to move it simply by eliminating difficult work handled with stooping posture and requiring substantial forces and possible tumbling accidents as noted when persons too feeble to stand on feet are transferred to portable toilets from beds or to the beds from the portable toilets.

In the device having a portable toilet with a toilet bucked mounted thereon and having functions of the portable toilet, a mechanism is so arranged as to get a slide rail installed on the portable toilet and the rail is made connectable to the bed to allow smooth movement of toilet seats along the rail. After the persons to be attended are moved onto the toilet seats, attendants can slightly push and shift the persons to be attended onto the portable toilet for excretion. After the end of the excretion, by reversing the procedure, the persons to be attended are returned to the beds. The series of operations are made possible by this portable toilet device.