PURPOSE: A transmission for oppositely rotating wind blades is provided to facilitate maintenance and repair and to generate maximum rotation force. CONSTITUTION: A front wind blade (111) and a rear wind blade (222) are arranged on the same shaft (100) and are oppositely rotated by a transmission (4). A ratio of the rear and front wind blades is same as a ratio of a front driven gear (11) and a front driving gear (1) in the transmission. [Reference numerals] (AA) Wind direction
