To provide an agitation device capable of better carrying out agitation of a microbial bed.

The agitation device has an opening part 111 that opens the upper part and is provided with a container 110 having flexibility capable of storing a microbial bed 50. This agitation device is also provided with a portable toilet stool body 120 and a storage container 140 which hold the periphery of the opening part 111 of the container 110, and a push-up member 130 which is capable of pushing up the center part of the bottom surface of the container 110 from the lower part.