The invention belongs to the field of a lithium iron phosphate energy storage power station and particularly relates to an explosion-proof strategy for a battery prefabricated cabin of the lithium iron phosphate energy storage power station. The explosion-proof strategy comprises steps that a first threshold value and a second threshold value of a combustible gas detection alarm system are set; when a detection value of the combustible gas detection alarm system reaches a first threshold value, a BMS battery management system is linked to start an explosion-proof electric fan; when the combustible gas detection alarm system reaches a second threshold value, after the BMS detects tripping of a PCS circuit breaker, the BMS closes the explosion-proof electric fan and starts a fire extinguishing system at the same time. The explosion-proof strategy is advantaged in that dual purposes of fire extinguishing and temperature control can be achieved, and explosion prevention of a lithium iron phosphate power station battery is achieved.