A centralized theft-proof device includes a main control, several sub-controls, and optionally a remote control. The main control includes a process, a display, a wireless receiver, and an alarm, and each sub-control includes a SCM and several interfaces connected to the SCM. The processor and SCM are in series connection. The processor is electrically connected to the display, the wireless receiver, and the alarm, respectively. The main control is connected to at least one adapter, and each sub-control is connected to at least one adapter.