Abstract: The 2D NMR core analysis experiments play an important role in unconventional oil and gas exploration and development, but the sample experimental equipment only provides raw echo data and rough 2D spectra, which require secondary processing of the results to obtain oil and gas saturation and other parameters. A set of general-purpose 2D NMR experimental data analysis softwares developed. Based on the fast high-resolution 2D spectral inversion algorithm and the area integration algorithm, fine processing and analysis of 2D NMR experimental data were achieved, and quantitative parameters such as porosity and saturation related to oil and gas reservoirs were directly obtained, extending the application of 2D NMR experimental results.