Stable culture medium constant temperature device

The utility model discloses a stable culture medium constant temperature device which comprises a box body, six placing chambers are formed in the front face of the box body, driven wheels A are rotationally installed at the bottoms of inner cavities of the six placing chambers, placing frames are fixedly installed at the tops of the driven wheels A, and temperature-adjustable heaters are fixedly installed at the tops of the inner cavities of the six placing chambers. The front faces of the six placing chambers are all provided with chamber doors, and the front face of the box body is fixedly provided with three control panels. After an arranged driving motor is started, the output end of the driving motor drives a driving tooth to rotate, the driving tooth drives a driven tooth to rotate through a chain, so that two rotating shafts are driven to rotate, six driven wheels B are driven to rotate, and the six driven wheels B rotate to drive six driven wheels A to rotate through a transmission belt; therefore, t