In order to obtain the evolutionary process and flow-field shape of shock waves emanating from an explosion wave simulation device outlet， a visualization research of explosion shock waves is conducted. This research can aid in better control of the loading waveform， and consequently， meet the loading requirements of weapons. A reflective high-speed schlieren measurement system is designed， which comprises a high-speed charge-coupled device （CCD） imaging unit and a series of optical elements. The image-evolution process of explosion waves can be measured and compared with the signals received by an external shock wave pressure sensor. The research shows that the number of explosion shock wave fronts obtained by the schlieren system is consistent with the results measured by the shock wave sensor， and the image morphology， formation， and evolution process of shock and reflected waves are obtained. Concurrently， the velocity information of explosion shock waves is obtained through image data of multiple shock wave fronts. The results provide a new technical approach and basis for analyzing the effective loading of explosion waves， as well as a better understanding of the form and evolutionary law of shock wave pressure formation.