A coating steel plate production degreaser and configure

The invention discloses a degreaser for coated steel plate production and a preparation method thereof. The degreaser is characterized by comprising the following raw materials by weight percent: 5-10% of polyethylene glycol used as an additive, 10-15% of non-ionic surfactant used as a surfactant, 3-6% of one or more of molybdate, silicate and sodium benzoate used as a corrosion inhibitor and the balance of water-based degreasing cleaning agent. The applicable temperature range of the degreaser is 40-55 DEG C. The preparation method of the degreaser comprises the following steps of: mixing the corrosion inhibitor with the water-based degreasing cleaning agent, then adding the mixture to a container holding water, stirring, and then adding the additive and the surfactant to the container.