The utility model discloses a modularization hybrid coupling device, including engine, generator and planetary gear, the engine is connected with planetary gear after passing through clutch lug connection with the generator again, link to each other to realize the modularization with the clutch between two epicyclie gear, and can select to keep apart or joint engine, generator subsystem according to efficiency comes first or the preferred principle of dynamic performance are nimble, controls through three group clutches and two sets of stoppers make the system can both realize that two keep off the operation when arbitrary single motor drive, can both realize the operation of electric infinitely variable (eCVT) mode when bi -motor common drive or under the hybrid operating mode. The utility model discloses can design the the highest efficiency of engine and generator on same operating point, make generating efficiency and drive efficiency maximize, not only can realize the modularization, can select to keep apart or joint engine, generator subsystem according to efficiency comes first or the preferred principle of dynamic performance are nimble moreover, the efficiency and the reliability that make the electricelectric move the operation all obtain further promotion.