The present invention discloses a method and a system for rapid laying of a perimeter protection system based on a wireless sensor. The system comprises first-class protection devices, a second-classprotection device, a wireless sound device, a handheld detection device and a remote monitoring device. Lots of the first-class protection devices are laid at a boundary position to be protected, andthe second-class protection device and the wireless sound device are installed at required positions; the handheld detection device is employed to input installation positions of the laid devices; thehandheld detection device is employed to approach to the laid boundary through walking and riding, and a laid intrusion detection effect is checked on a screen; and when there is a person or a vehicle approaches to the laid boundary in a task mode, the first-class protection devices and the second-class protection device are employed to send intrusion detection information obtained through calculation to the remote monitoring device and send an alarm instruction to the wireless sound device so as to achieve a purpose of designing a perimeter protection system based on the wireless sensor withrapid laying, power supply by a power source, network communication and a flexible protection function and easy usage.