To provide a supply device and a toner bottle which are able to satisfactorily supply toner corresponding to each color even in the case where a plurality of toner bottles are simultaneously rotated.

The storage part 71 of the toner bottle 70 is a cylindrical body freely rotated with respect to a cover part 72. A projecting part 71a is spirally formed in a toner supply direction so as to project from an internal wall 70a toward a storing space 71b. An agitating part 76 is arranged downstream of the projecting part 71a in the toner supply direction. The agitating part 76 agitates toner stored in the storing space 71b according to the rotating operation of the storing part 71. Accordingly, even if toner stays near a supply port 73, toner near the supply port 73 can be agitated satisfactorily.