The invention discloses a water-based LED (light emitting diode) chip cleaning agent, prepared from the following components of alkylolamide polyoxyethylene ether, polyoxyethylene sorbitan fatty acid ester, an emulsifier, an organic solvent, tetrahydrofurfuryl alcohol, trifluoroethanol, tripropylene glycol monomethyl ether, 2-(2'-hydroxylphenyl)benzoimidazole, sodium cumenesulfonate, a dispersant, a corrosion inhibitor and deionized water. The cleaning agent provided by the invention has the advantages that the effects of high cleaning efficiency, strong detergency, good safety performance, freeness from environmental pollution, energy saving and low washing cost are achieved; an LED is not damaged in a washing process; a protective film can be formed on the surface of a chip through the cleaning agent, so that air is isolated, and the chip is prevented from being corroded by moisture and other molecules in the air, therefore the effect of oxidation resistance is achieved, and a next production process is conveniently performed.