The analysis of wide-angle seismic reflection and refraction data plays an important role in lithospheric-scale crustal structure study. However, it is extremely difcult to develop an appropriate velocity structure model directly fromthe observed data, and we have to improve the structure model step by step, because the crustal structure analysis is anintrinsically non-linear problem. There are several subjective processes in wide-angle crustal structure modelling, such asphase identication and trial-and-error forward modelling. Because these subjective processes in wide-angle data analysisreducetheuniquenessandcredibilityoftheresultantmodels,itisimportanttoreducesubjectivityintheanalysisprocedure.From this point of view, we describe two software tools, PASTEUP and MODELING, to be used for developing crustalstructure models.PASTEUP is an interactive application that facilitates the plotting of record sections, analysis of wide-angle seismicdata, and picking of phases. PASTEUP is equipped with various lters and analysis functions to enhance signal-to-noiseratioandtohelpphaseidentication.MODELINGisaninteractiveapplicationforeditingvelocitymodels,andray-tracing.Synthetic traveltimes computed by the MODELING application can be directly compared with the observed waveformsin the PASTEUP application. This reduces subjectivity in crustal structure modelling because traveltime picking, which isone of the most subjective process in the crustal structure analysis, is not required. MODELING can convert an editable(MCS) reection data. Direct comparison between the structure model of wide-angle data with the reection data will givethe model more credibility. In addition, both PASTEUP and MODELING are efcient tools for handling a large dataset.These software tools help us develop more plausible lithospheric-scale structure models using wide-angle seismic data.