NOVELTY - The device has mechanical transmission device that drives back walking wheel (28) and front walking wheel (14) to rotate and drive wind hydrogen fuel battery electric cotton picker (25). The cottons are conveyed into seed cotton inlet (19) by air flow in seed cotton conveying device. The seed cotton is divided into ginned cotton and cotton seed. The ginned cotton is conveyed out of wind hydrogen fuel battery electric cotton picker through ginned cotton outlet (26). The driver drives the walking wheel to rotate back walking wheel and front walking wheel.    USE - Power device for applying wind hydrogen energy on cotton picker.    DETAILED DESCRIPTION - The power device has wind hydrogen energy supplying device and electric cotton picking device which are connected wind hydrogen fuel battery electric cotton picker. The wind hydrogen energy supplying device includes wind hydrogen power generator (2), blade (1), supporting column (3), conductive wire (4), electrolytic water hydrogen producing device (5), hydrogen gas conveying pipe (6), hydrogen fuel storing container manufacturing workshop (7), hydrogen fuel storing container (8), hydrogen fuel conveying pipe (9), hydrogen fuel battery (10), motor (11), power output shaft (12), mechanical transmission device (13) of wind power generators. The electric cotton picking device includes guiding device (16), cotton picking chamber (15), seed cotton conveying device (18), seed cotton inlet (19), seed cotton storing box (20), cotton rolling device (21), cotton seed conveying device (22), cotton seed storing box (23), ginned cotton storing box (24), ginned cotton outlet, back walking wheel and front walking wheel. The portion of wind hydrogen energy supplying device is following the hydrogen fuel storing container, hydrogen fuel conveying pipe, hydrogen fuel battery, conductive wire, power output shaft and mechanical transmission device are installed in power device box (27) of bottom of electric cotton picking device. The wind of cotton generating area blows the blade of wind hydrogen power generator on supporting column of wind hydrogen power generator to rapidly rotate and drive wind hydrogen power generator of wind power generators to generate current. The current is inputted to an electrolytic water hydrogen producing device to generate hydrogen. The hydrogen is inputted to hydrogen fuel storing container manufacturing workshop by the conductive wire to generate hydrogen gas. The hydrogen gas is inputted into hydrogen fuel storing container manufacturing workshop through hydrogen gas conveying pipe to manufacture hydrogen fuel stored in hydrogen fuel container. The hydrogen fuel storing container filled with hydrogen fuel is conveyed out from hydrogen fuel storing container manufacturing workshop to be placed into predetermined position of inner portion of power device box of the bottom of electric cotton picking device. The hydrogen fuel outputted from hydrogen fuel storing container is inputted into hydrogen fuel battery through the hydrogen fuel conveying pipe. The electric power is converted into mechanical power in hydrogen fuel battery. The mechanical power is conveyed to mechanical transmission device through power output shaft of motor. The mechanical transmission device drives back walking wheel and front walking wheel to rotate and drive the wind hydrogen fuel battery electric cotton picker to strengthen the cotton plants by guiding device. The picked bat wool cottons are conveyed into seed cotton conveying device through cotton picking chamber. The cottons are conveyed into seed cotton inlet by air flow in seed cotton conveying device. The cottons are temporarily stored in seed cotton storing box. The seed cotton is divided into ginned cotton and cotton seed in cotton rolling device. The cotton seed is input into cotton seed storing box through cotton seed conveying device to be stored. The ginned cotton is input into ginned cotton storing box. The ginned cotton is conveyed out of wind hydrogen fuel battery electric cotton picker through ginned cotton outlet. The driver sits in driving cab (17) to manipulate relative component of wind hydrogen fuel battery electric cotton picker to pick cotton, convey, roll and store the cotton. The driver drives the walking wheel to rotate and the rotation of back walking wheel and front walking wheel.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the power device for applying wind hydrogen energy on cotton picker.    Blade (1)    Wind hydrogen power generator (2)    Supporting column (3)    Conductive wire (4)    Electrolytic water hydrogen producing device (5)    Hydrogen gas conveying pipe (6)    Hydrogen fuel storing container manufacturing workshop (7)    Hydrogen fuel storing container (8)    Hydrogen fuel conveying pipe (9)    Hydrogen fuel battery (10)    Motor (11)    Power output shaft (12)    Mechanical transmission device (13)    Front walking wheel (14)    Cotton picking chamber (15)    Guiding device (16)    Driving cab (17)    Seed cotton conveying device (18)    Seed cotton inlet (19)    Cotton storing box (20)    Cotton rolling device (21)    Cotton seed conveying device (22)    Cotton seed storing box (23)    Ginned cotton storing box (24)    Drive wind hydrogen fuel battery electric cotton picker (25)    Ginned cotton outlet (26)    Power device box (27)    Back walking wheel (28)