A liquid transport device is attachable to a living body and transports a liquid to the living body. The liquid transport device includes a pump unit that includes a storage portion for storing the liquid and a pumping portion for transporting the liquid in the storage portion to the living body, and a seal portion that attaches the pump unit to the living body. A portion of a surface of the living body side of the pump unit is separated from an upper surface of the seal portion. In the liquid transport device, the pump unit is easily fixed to a flexible surface of the living body and a load on the living body is reduced while securing areas for the lower surface of the pump unit and the sealing surface of the seal portion.
