The invention discloses a multi-mode power system for a dual-electric hybrid engine which includes an engine, an elastic damping disk, a first electric machine, a second electric machine, a first planetary row, a second planetary row, and a differential parallel-shaft gear transmission. The multi-mode power system includes an engine, an elastic damping disk, a first electric machine, a second electric machine, a first planetary row, a second planetary row, and a differential device. By selecting a clutch brake, the first motor brake and the second motor brake are closed and released, the engine is individually driven, the second motor is individually driven, and the engine and the second motor are jointly driven The combined driving mode of the engine and the first electric machine and thecombined driving mode of the engine and the first electric machine and the second electric machine are realized, and the rotor braking mode of the first electric machine and the second electric machine is realized when the engine is separately driven. The invention has the advantages of simple transmission system, full brake structure, strong fuel-saving and electricity-saving performance, long service life, small moment of inertia, strong power, high reliability and low cost, and is suitable for the hybrid power system of passenger vehicles.