A system for multifunctional remote control is disclosed. The system comprises a remote control (100) for connecting mechanically and electrically with a cartridge (200), reading data stored in the cartridge through the first connection unit (110), storing the read data, and setting the registration of use; and a cartridge (200) for mechanically and electronically connecting with the remote control (100), receiving data from a user computer (10), storing the received data, and transmitting/receiving infrared signal to/from a controlled product.