The present invention relates to a joint device connected to a syringe that administers a chemical solution included in a ringer to a patient and a transfusion set comprising same.According to the present invention, disclosed are a joint device in which one end is connected to be in communication with a needle part with a needle and the other end is connected to be in communication with a connection tube through which a solution flows, including: a body part in which both ends are opened and a chemical solution space is formed therein, and one end is connected so that the chemical solution space and the needle part are in communication with each other and a joint part having a first end connected to be in communication with the body part, a second end connected to be in communication with the connection tube, and a communicating tube for communicating and connecting the first end and the second end with each other, in which at least a part of the communicating tube is bent so that opening directions of the first end and the second end are not opposite to each other, and a transfusion set comprising same.