Saliva collecting and imaging device

The invention provides a saliva collecting and imaging device, and relates to the technical field of medical detection. The saliva collecting and imaging device comprises a saliva collecting part anda saliva imaging part, the saliva imaging part comprises a saliva injection port, an accommodating chamber and a liquid collecting area, the saliva injection port is connected with the saliva collecting part, the saliva injection port is communicated with the liquid collecting area through a accommodating cavity, the saliva collecting part is provided with an inflow channel, the inflow channel isprovided with a filter piece, the liquid collecting area is provided with an air hole communicated with the outside, and the saliva collecting part is internally provided with a heating assembly. Quantitative collection of saliva is achieved, patterns after saliva crystallization are projected and amplified through the imaging device, observation is facilitated, meanwhile, a saliva crystallizationimage is changed through a