A smart home based home anti-theft system comprises a central control device, a wireless communication module and a monitoring alarm module. The central control device is a PLC. The wireless communication module and the monitoring alarm module are both electrically connected with the central control device. The smart home based home anti-theft system ensures users are able to monitor a system in real time through the wireless communication module, improving system practicality. In the monitoring alarm module, use of a conventional integrated circuit ensures performance and reduces production cost. When a first acoustic-vibration sensor (HTD1) and a second acoustic-vibration sensor (HTD2) do not detect an acoustic-vibration signal, the system is in a low power consumption state all the time, and therefore the power consumption of the system is reduced. Furthermore, output signals are filtered through a fourth capacitor (C4) and voltage limiting and conditioning of the signals is carried out through a first diode (D1) and a second diode (D2), thereby preventing interference signals from interfering with subsequent processing.