The present invention relates to a composite compact-type fat decomposition device, which is characterized in that fat in the epidermis of the skin is decomposed by a beam radiated from LEDs (310), fat in the dermis of the skin is decomposed by a beam radiated from a laser tube (100), and fat in the hypodermis of the skin is decomposed by a high frequency generated by an RF plate. The present invention includes: a handle (200) having a laser tube (100) therein and providing a grip; a rubber tab (230) coupled to a first end of the handle and protecting a power line; a ring-shaped LED PCB (300) coupled to a second end of the handle and equipped with LEDs (310); an RF plate support (400) having the LED PCB (300) on a first side and an RF plate (410) on a second side; the RF plate (410) decomposing fat by generating a high frequency; and a controller (500) controlling operations of the LEDs (310), the laser tube (100), and the RF plate (410), in which a beam radiated from the LEDs (310) decomposes fat in the epidermis of the skin, a beam radiated from the laser tube decomposes fat in the dermis of the skin, and the high frequency generated by the RF plate (410) decomposes fat in the hypodermis of the skin.