This invention is related to a device for collection and test of fluid specimens, comprising a first cavity and a second cavity； wherein, the first cavity is located inside the second cavity； furthermore, the first and second cavities are interconnected； the said first cavity is available for mutual rotation with the second cavity to facilitate fluid to flow between them； the first cavity is provided with a first position and a second position inside the second cavity. The device of this invention can ensure adequate and uniform mixing of fluid inside the second cavity to facilitate further tests.
