Standby power cut-off system

PURPOSE: A standby power blocking system is provided to control a product when standby power is blocked, thereby saving energy. CONSTITUTION: A power unit(19) supplies power to a main system(10). The main system controls a plurality of electronic products. A controller(11) controls the main system. The controller is made of a CPU(Central Processing Unit) and a memory. A wireless communication unit(12) receives remote control from a corresponding mobile phone by communicating with a mobile phone of an external user. A display and key input unit(17) includes an LCD display and a plurality of keys. A device selecting and driving unit(13) operates standby power blocking units(200,300,400) of corresponding products to supply power to the products.