A fluid transportation device for transportation fluid comprises a valve main body, a valve chamber base, a valve membrane, an actuator and a cover body, and locked and positioned by several locking elements, the electrically conductive locking elements are correspondingly penetrated through the penetration holes of the valve main body, the valve chamber base and the vibration plate of the valve membrane to lock with the corresponding screw holes, and a plurality of thread grooves respectively disposed on the vibration plate, the valve main body and the valve chamber base are corresponding to two thread grooves of the cover body, and an electrode lead of the piezoelectric element is embedded into the two thread grooves of the cover body and embedded into the thread grooves of the vibration plate, valve main body and the valve chamber base, so that the fluid transportation device is assembled.