The invention relates to an environmental protection type gas welding anti-splashing liquid, and belongs to an important auxiliary material in the technical field of metal welding. In the prior art, during a metal welding process, splashing sparks fall down onto a machine to form steel particles, and the steel particles adhere to the surface of the metal, such that the steel particles are difficultly removed. A purpose of the present invention is mainly to solve the technical problem in the prior art. More particularly the present invention relates to an environmental protection type gas welding anti-splashing liquid. The present invention provides the gas welding anti-splashing liquid with characteristics of good anti-splashing effect, environmental protection, no harm on skin, and low cost, wherein harmful elements are completely not used for forming the components of the environmental protection type gas welding anti-splashing liquid, such that the most prominent characteristic is no adverse mixed gas generation. The environmental protection type gas welding anti-splashing liquid comprises, by mass, 2-5% of triethanolamine, 0.3-0.5% of a Carbomer resin, 0.1-0.2% of polyvinyl pyrrolidone, 0.05-0.15% of guar gum, 0.05-0.15% of casein, 0.05-0.15% of sucrose fatty acid ester, and the balance of water.