An intelligent algorithm for processing fire detection signal is proposed aiming at the characteristic of fire detection.The automatic adjusting of design parameter in fuzzy system is realized by integrating fuzzy system and neural network.Accordiny to the request of fuzzy neural network algorithm

the design of network configuration is accomplished and calculating model correspondingly is given

then using reformative BP algorithm completes the network learning and training.The algorithm can reduces the rate of false alarm in fire detection.Finally the network testing is proceeded according to national standard test fire data

and the emulate result shows the algorithm is the validity and feasibility.