The medical infusion connector of one kind and its lid structure, the lid includes: one covers, the covering includes that a screening portion and an extension connect the screening portion, connector of the screening portion to cover the infusion connector, the extension is equipped with an opening, when the screening portion of the covering removes the connector, to enable the connector is corresponding to expose the opening. By it, user is allowed to cover the purpose that can reach the connector of covering or exposing infusion connector by pressing operation, therefore be particularly suitable for one-handed performance and use, to promote the convenience that connector of being infused uses. 一種醫療用輸液連接件及其蓋體構造，該蓋體包含：一遮蓋，該遮蓋包含一遮部及一延伸部連接該遮部，該遮部用以遮蓋該輸液連接件之接頭，該延伸部上設有一開口，以在該遮蓋之遮部移開該接頭時，令該接頭對應露出該開口。藉之，讓使用者藉由按壓操作遮蓋即可達到遮蓋或是露出輸液連接件之接頭的目的，因此特別適合單手操作使用，以增進輸液連接件使用的方便性。
