The invention relates to an electromechanical hybrid power coupling device. The electromechanical hybrid power coupling device comprises a first planetary gear set (3), a second planetary gear set (4), a rotating clutch (5), a first brake clutch (7), a second brake clutch (6), an output shaft (9) and a fixing part, wherein the first planetary gear set (3) is provided with a first gear ring, a first planet carrier and a first sun gear; the second planetary gear set (4) is provided with a second gear ring, a second planet carrier and a second sun gear; a mechanical power source is connected to the first gear ring; a rotor of a motor (2) is connected to the second gear ring; the first sun gear is rigidly connected with the second planet carrier; the output shaft (9) is rigidly connected withthe first planet carrier; the rotating clutch (5) is used for controlling the first gear ring and the second sun gear to be connected or disconnected; the first brake clutch (7) is used for controlling the second sun gear and the fixing part to be connected or disconnected; and the second brake clutch (6) is used for controlling the second planet carrier and the fixing part to be connected or disconnected.