Titanium silicalite catalyst belongs to ZSM-5 series zeolite and has MFI topological structure. The titanium silicalite catalyst for clean oxidation reaction has the advantages of low dosage, high activity selectivity, good stability and non-toxic effect on environment. In modern chemical industry, it is one of the key catalysts for the clean oxidation process to replace the traditional chemical oxidation process with high pollution and high energy consumption. It has been widely used in clean oxidation reactions with hydrogen peroxide as oxidant (including epoxidation, ammoximation and Hydroxylation).