The invention provides a cam oscillating tooth carrier end gear output type internal combustion engine, relates to the field of gas power, and belongs to a multi-cylinder internal combustion engine. The invention provides the novel internal combustion engine. Pistons act on cam oscillating tooth carriers by means of pushing rods and universal ball components. Power is transmitted to an output shaft, connected with end gears by means of a key, via a groove-type two-phase wobble plate oscillating tooth transmission mechanism by the cam oscillating tooth carriers to be output. The cam oscillating tooth carriers combine the internal combustion engine with a cam oscillating tooth carrier wobble plate mechanism, so that the internal combustion engine is not additionally provided with a gear change mechanism. A crank-link mechanism in a crank-link internal combustion engine is omitted, eccentric mass does not exist in the internal combustion engine, all internal forces are balanced automatically, steel ball oscillating teeth are in multi-tooth meshing with a left cover two-phase wobble plate wave generator, the cam oscillating tooth carriers and the end gears, and all the cylinders are arranged in the axial direction. The cam oscillating tooth carrier end gear output type internal combustion engine is simple and compact in structure, small in size, high in contact ratio, and high in bearing capacity, and can be widely used in fields needing high power, such as a small generator, a helicopter engine, an excavator and an armored car.