The invention relates to a fire-fighting field fire-fighting personnel state detection system and detection method. The monitoring system comprises a position detection module installed on a protection device worn by a fire-fighting person and a remote detection terminal in wireless connection with the position detection module, wherein the position detection module comprises a CPU controller and a radio frequency module, a GPS positioning module, a fall detection sensor and a power supply module which are connected with the CPU controller, the radio frequency module is connected with an antenna; and the remote control terminal comprises a single-chip microcomputer and a display screen, an alarm apparatus and a receiving module which are connected with the single-chip microcomputer, and the receiving module is used for receiving radio frequency detection information sent by the radio frequency module. The system and method facilitate monitoring of position information and state of fire-fighting personnel of a fire-fighting field.