In order to process the physical chemistry experimental data quickly,electronic sheet of Excel was used on operating system of Windows,which is simple.According to mathematical model of first order reaction data-processing,a electronic sheet of data process of first order reaction was built,and formula was added by calculations model.The processing of experimental data with detailed steps and first order reaction processing of experimental data was discussed,and the chart can be drawn automatically.The data-processing methods can be prepared by the users according to the situation of experiment.This method can be used in the processing of physical chemical of experimental data in the students' experiments.