The direct drive intelligent water vehicle with high efficiency and energy saving consists of a DC brushless motor, a paddle for turning the water vehicle, a driver for controlling the rotation speed and torque of the DC brushless motor. By using the DC brushless motor, the variable speed of the DC brushless motor in the waterwheel can be adjusted freely, so as to control the speed or torque effectively in response to the demand of environmental change. Therefore, the speed reduction gearbox that must be added in the general commercial waterwheel can be completely removed.本創作直驅高效節能智慧型水車，包括：直流無刷馬達，用以轉動水車的打水槳葉，驅動器，用以控制該直流無刷馬達的轉速及扭力。藉由直流無刷馬達，可以自由調整水車中直流無刷馬達的無段變速，以因應環境變化需求而有效控制轉速或扭力，因此可以完全去除掉一般市售的水車中必須附加的減速齒輪箱。
