针对实验室医学光谱仪信号的具体特点，研究并提出了快速中值滤波算法和人工神经网络改进的BP算法，用计算机软件实现了光谱信号噪声的滤除和波峰检测的两大功能。实验结果表明效果良好。 Aiming at the specific characteristics of the laboratory medical spectrometer signal, the fast median filtering algorithm and the improved BP algorithm of artificial neural network were studied and proposed. The two functions of spectral signal noise filtering and peak detection were realized by computer software. The experimental results show that the effect is good.