All-purpose food-grade cleaning agent and preparation method thereof

The invention relates to an all-purpose food-grade cleaning agent and a preparation method thereof. According to the all-purpose food-grade cleaning agent, polyglycerol fatty acid ester and/or alkyl glycoside is adopted as a surfactant, therefore, safety is high, and the high emulsifying power, dispersing power, infiltrating power and dissolving power are achieved; glycerol and sodium carbonate are adopted as effective decontaminating components, therefore, the problem that environmental eutrophication contamination is prone to be generated by sodium tripolyphosphate in an existing washing auxiliary can be effectively solved, and the all-purpose food-grade cleaning agent is good in degreasing power, has moisturizing and emulsifying functions and does not harm the skin; a macromolecular polymer not containing N and P elements is adopted as a thickening agent, therefore, safety is high while a washing assisting function is achieved, and no pollution is generated to the environment. The all-purpose food-grade cleaning agent can be suitable for the fields of kitchen cleaning, ground surface cleaning, wall surface cleaning, carpet cleaning, fabric cleaning, metal cleaning and the like, is wide in application range, high in decontaminating power, good in degreasing effect, high in safety, good in biodegradability, free of adverse influences to the environment, capable of not harming the skin and free of pungent smell.