Microbial incubator with controllable temperature and humidity

The invention discloses a temperature and humidity controllable microbial incubator which comprises a device shell and a control box, and the control box is arranged at the top of the device shell; the clamping cavity is formed in the containing plate and located on the rear side of the containing groove. And the rotating rod is rotatably and vertically arranged in an inner cavity of the clamping cavity, and a first gear meshed with the first rack plate is arranged at the bottom end of the clamping cavity. According to the temperature and humidity controllable microbial incubator, a first gear is engaged with a first rack plate through a rotating rod arranged in an inner cavity of a clamping cavity, then the first rack plate drives a rubber pad to be attached to a culture bottle for fixation, and a culture dish can be fixed through a rubber ring arranged in a placement groove; other culture dishes are prevented from falling off due to mistaken touch in the taking process, meanwhile, different culture devices