PROBLEM TO BE SOLVED: To provide a connector capable of easily repeating connection and separation in a state of a connecting end portion being isolating from the outside.SOLUTION: A connector 1 is equipped with a connecting end portion 2； a tube 3 which is attached to a base end side of the connecting end portion, and causes fluid to circulate through the connecting end portion； and a cover portion 4 which is fixed to the tube and covers the connecting end portion. The cover portion includes a first sheet 4a and a second sheet 4b provided at least in a range on a leading end side of the connecting end portion and stuck to each other. On a first back surface of the first sheet and a second back surface of the second sheet, adhesive 5 capable of repeating peeling-off and adhesion is individually provided. The cover portion is sealed by sticking the first back surface and the second back surface to each other by the adhesive around the connecting end portion in a state of the connecting end portion being disposed between the first sheet and the second sheet.SELECTED DRAWING: Figure 1
