The present disclosure provides a collection device capable of collecting a virus or the like effectively. The collection device according to the present disclosure is an autonomous collection device (2) for collecting an object having an analyte and moisture from a floor surface. The autonomous collection device (2) comprises a drying part (18) for drying the object, a suction opening (36) for suctioning the object dried by the drying part, and a dust container (12) for storing the object suctioned from the suction opening.