A powder transport device includes a powder storing unit having a powder storing part which stores powder, and a container unit having a container part in which the powder storing unit is accommodated. The powder storing unit comprises a motor part for operating the powder storing unit, an electrical wiring for transmitting an electric signal sent from the motor part or a driving current sent to the motor part, and a first connector for providing electrical conduction between the electrical wiring and an external wiring. The container unit comprises a second connector electrically connected to the external wiring, the second connector being engaged with the first connector so that the first connector provides electrical conduction between the electrical wiring and the external wiring.