The invention relates to a pasty scrawl removing agent capable of being emulsified by water, comprising the following ingredients in percentage by weight: 25-60 percent of aromatic hydrocarbon, 3-5 percent of p-toluenesulfonic acid, 3-5 percent of methanoic acid, 0-5 percent of ethanol, 5-6 percent of bentonite, 0-4 percent of matt powder, 15-44 percent of methyl pyrrolidone, 4-8 percent of emulsifier, 3-5 percent of penetrating agent and 3-5 percent of sodium dodecyl benzene sulfonate. Compared with the prior art, the pasty scrawl removing agent has the advantages of low toxicity, easy construction, no hidden fire danger, no corrosion to the base material, no injury to constructors and environment-friendly performance and the like.