There is an important significance for the design,verification and impro vement of data acquisition system to obtain the transmission properties.To accurately obtain the dynamic transmis sion properties of data acquisition system,a data acquisition system based on least mean square (LMS) algorithm is proposed in this paper.An FIR filter model for the data acquisition system is constructed at first,then a sinusoidal signal is used as system i nput,and the acquisition signal is take n as the system output.Finally,the system path parameters are computed using LMS algorithm to obtain the dynamic t ransmission properties, including amplitude attenuation,phasic translation and mixed noise.Based on re search of theory,an experimental platform is built,both simulation experiment and hardware verifica tion are done,and then the experiment data is analyzed and compared.In the simulation,the rec ognition accuracies of three dynamic transmission properties are all above 98%,proving the feasibility of the algorithm in theory.In the Hardware validation,the average recognition accuracies are all higher than 96%,which indicates that the proposed method is effective and feasible to obtai n data acquisition system transmission properties with high-precision for dynamic transmission.