Abstract:The basic methods for analysis of underground seismic fluid data include averaging, detrending changes, spectrum analysis, custom function fitting, wellbore water temperature gradient curve drawing, etc. There is some professional software to carry out these methods. However, these software have poor adaptability, and are challenged to deal with various types of data as different boreholes, different well-aquifer systems, and so on. In this case, the professional mathematical tools reflect their superiorities. MATLAB is number one in numerical calculations of mathematical applications, which has advanced technical computing languages and interactive environments for algorithm development, data visualization, data analysis, and numerical computation. In this article, the implementation and examples of these analyzing methods are shown.