On the base of the summarizing the relative researches, the complicated chemical effects of cavitating water jet, direct pyrogenation, free radicel oxidation and supercritical water oxidation, are investigated, which the local and instantaneous high temperature and pressure is generated as the bubbles in cavitating water jets collapse. The ranges of chemical reaction as the bubble collapses are divided. The affected factors of the chemical effects of cavitating water jets are discussed.
