Thermotank for biological experiment

A thermotank for biological experiments belongs to the field of biological experiments and comprises a tank assembly, two fixing devices, a heating device and a tank cover, the fixing devices are slidably connected into the tank assembly, the two fixing devices are symmetrically arranged, and the tank cover is arranged at the upper end of the tank assembly. The culture device can be used for heating and preserving heat of cultured organisms, and can also be used for oscillating the culture device to prevent the cultured organisms from standing for a long time to influence the culture of the organisms; meanwhile, the culture dishes with different sizes can be fixed, so that cultured organisms in the culture dishes are prevented from spilling out when the constant-temperature box is moved or the constant-temperature box is impacted by external force, and a protection effect is effectively achieved. The culture dishes are stored in a stacking manner, so that the space is saved, and meanwhile, the culture dishes