A sprout cultivation device has a carrying body, a controlling device, at least one container, a tube and a sprinkling device. The carrying body controls the amount of water by a water controller and changes the pumping time by a timer. Moreover, an actuating switch is mounted to the carrying body to start a motor to pump the fluid to a cultivation space via the tube. Because seeds of sprouts are embedded in a tray of the container and the fluid is regularly injected into the container via the tube by the motor, the sprout cultivation device is operated automatically without manpower and accelerates the mature time of the sprouts to increase harvest. Moreover, the carrying body interiorly defines a reservoir space for accommodating the fluid to significantly diminish the carrying body's size.