A comprehensive analysis platform of ReaxMDDB-EMs was developed for investigation of thermolysis reaction mechanisms across varied energetic compounds. An automatic data import program was implemented with a combined strategy of preprocessing and batch-import to solve the problem of unacceptable long time for dealing with massive data. Performance testing of the automatic data import program shows a 18-fold speed-up， which dramatically reduces the time to 26.8 hours for importing large volume reaction data set over one million species or reactions. The hierarchical functions developed for reaction analysis enable the unified retrieval， statistical analysis， and visualization of the massive reaction data collected in ReaxMDDB-EMs. The application of ReaxMDDB-EMs unravels the similarities and differences among the thermolysis of four nitramine energetic compounds， which indicates that the ReaxMDDB-EMs as a convenient tool allows for a comprehensive analysis of reaction mechanism within vast chemical space of thermolysis for energetic materials. This work provides an efficient tool for the new research paradigm of data-driven design of energetic materials on-demand in the big-data era.