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.
