The utility model relates to a collection and inspection casing and a plug cover structure, which comprises a test tube, a collection tube and a plug cover.The test tube includes a supporting part to support the collecting tube.The collecting tube comprises a bolt head, a positioning part and a collecting part. The bolt head closes one end of the tube, and the positioning part is supported by the said supporting part and positioned in the tube. The collecting part is connected with the positioning part and used for collecting a sample.The plug cover comprises a plug body at the other end of the closed test tube and a puncture part.The puncture part is integrally connected with the plug body and the position is corresponding to the test tube for puncture, so that the test tube is externally connected.The puncture part is made of polyolefin and has a thin thickness, so as to reduce the cost of medical waste treatment and environmental protection.一種採檢套管及其塞蓋結構,包含一試管、一採集管以及一塞蓋。試管包含一承托部以承托採集管。採集管包含一栓頭、一定位部以及一採集部,栓頭封閉試管之一端,定位部受前述承托部承托而定位於試管內,採集部則連接定位部並用於採集一檢體。塞蓋包含封閉試管另一端之一塞體以及一穿刺部。穿刺部一體連接塞體且位置對應試管以供穿刺,以令試管對外連通。而穿刺部由聚烯烴製成並具有較薄厚度,藉以降低醫療廢棄物處理成本,同時兼顧環境保護。