A connecting device for a wound protection dressing, and a wound protection dressing. The connecting device comprises a first tube connector (1) and a second tube connector (3)； the first tube connector (1) and the second tube connector (3) are respectively provided with a first through hole (1a) and a second through hole (3a) that run through the respective ends of the first tube connector (1) and the second tube connector (3)； a hollow ball head (2) is integrally formed on one end of the first tube connector (1)； the inner cavity of the ball head (2) are in communication with the first through hole (1a)； at least one via hole (2a) is provided on the ball head (2)； a ball shell (4) adapted to the ball head (2) is integrally formed on one end of the second tube connector (3)； the inner cavity of the ball shell (4) is in communication with the second through hole (3a)； a snap-fit hole (4a) is provided on the ball shell (4)； the snap-fit hole (4a) has at least one circular fastening hole (4a1)； the ball head (2) is snap-fit in the ball shell (4)； the end of the first tube connector (1) close to the ball head (2) is fastened in one of the fastening hole (4a1) of the snap-fit hole (4a). Thus, the connecting device for a wound protection dressing and the wound protection dressing which avoid pressing the skin and wound surface, allow the liquid to smoothly flow out, and facilitate flexible connection of the tube line are provided.
