Saliva sampler

The utility model relates to a saliva sampler, which comprises a collecting tube, an opening is formed in the top of the collecting tube, and an extrusion mechanism is arranged at the lower part of the collecting tube; the first cover body is detachably connected to the top of the collecting tube; the rod body can be contained in the collecting pipe, the rod body can move up and down relative to the first cover body, and a sponge body is arranged at the bottom of the rod body; when the rod body moves downwards, the rod body can drive the sponge body to make contact with the extrusion mechanism on the collecting pipe, and the extrusion mechanism can extrude the sponge body. The spittle sampler has the beneficial effects that the spittle sampler is simple and convenient to operate and does not pollute the outside of the collecting tube in a manner of holding the rod body into the sublingual to collect a spittle sample. Meanwhile, the extrusion mechanism arranged on the collection tube can also extrude the spong