The present invention provides a needle-equipped connecting member (1) including a member body (3) on which a hollow needle (2) is erected and an elastic sheath (4) which covers the hollow needle (2), in which a drug solution container-connecting portion (12) constituted to be able to be connected to a drug solution container (22) is disposed at the side opposite to the side of the member body (3) on which the hollow needle (2) is erected, and the elastic sheath (4) covers the hollow needle (2) in a state of being in close contact with and being removable from at least the outer surface of the hollow needle (2). The present invention also provides a drug dissolution kit (35) using the needle-equipped connecting member (1). According to the present invention, when the drug dissolution kit (35) is used, a sterilization process can be performed simply.
