文章提出了一种基于激光拉曼光谱仪的生物燃气气体组分含量的快速分析方法,实现了生物燃气中C_1~C_3、H_2、O_2、N_2、CO、CO_2共11种气体成分的同时测定。通过实验测定、计算CH_4主峰处其他气体相对于CH_4的折算系数,解决了拉曼光谱中存在的重叠峰使CH4测量不准确的问题。同时通过实验和分析确定了合理的积分时间和气体压力。实验表明,所有组分都能被测量出来,并且测量的绝对误差小于1%,基本满足生物燃气组分含量的现场分析的精度和稳定性要求。 In this paper, a rapid analysis method of biogas gas components based on laser Raman spectroscopy is proposed, and the simultaneous determination of 11 gas components of C_1 ~ C_3, H_2, O_2, N_2, CO and CO_2 in biogas is achieved. Through the experiment, the conversion coefficient of CH_4 with respect to other gases at the main peak of CH_4 is calculated, which solves the problem of inaccurate CH4 measurement due to overlapping peaks in Raman spectrum. At the same time, reasonable integration time and gas pressure were determined through experiments and analysis. Experiments show that all the components can be measured, and the absolute error of measurement is less than 1%, basically meeting the accuracy and stability requirements of on-site analysis of biogas component content.