Preparation method of multi-enzyme-containing efficient all-purpose membrane cleaning agent

The invention provides a preparation method of a multi-enzyme-containing efficient all-purpose membrane cleaning agent. The preparation method comprises the following steps: (1) preparing glycosylase; (2) negative spray ionization high-energy collision induction is carried out to prepare a small molecule stabilizer; (3) taking the following raw materials in percentage by mass: 6%-10% of the glycosylated acid protease prepared in the step (1), 6%-10% of acid cellulase, 6%-10% of alpha-amylase, 6%-10% of pectinase and 6%-10% of lipase; 1-3% of a micromolecular stabilizer prepared in the step (2); 5-10% of an ionic liquid; 0.5%-1.5% of a preservative; 10-20% of a complexing agent; and the balance of deionized water. And (4) preparing the membrane cleaning agent. According to the invention, the cleaning range of membrane pollutant types is expanded, and the cleaning effect of membrane pollution is effectively improved; the multi-enzyme cleaning and the ionic liquid auxiliary cleaning agent are cooperated, so that