The invention discloses a special liquid crystal display screen cleaning agent, which comprises the following raw materials by weight: fatty alcohol polyoxyethylene ether, diethylene glycol monohexyl ether, polyoxyethylene alkyl phenyl ether, tripropylene glycol methyl ether, ethylene glycol monoethyl ether, polyoxyethylene sorbitan monooleate, coconut fatty acid diethanolamide, alkyl polyglucoside, nanometer titanium dioxide, an Enteromorpha extract, 5-chloro-2-methylisothiazolinone, N-methyl-2-pyrrolidine, sodium hydrogen ferric DTPA, and dicarboxymethyl alanine trisodium. Compared to the cleaning agent in the prior art, the cleaning agent of the present invention contains the small-molecule acids extracted from the marine plants, can effectively dissolve dust, bug dead bodies, residual glues and other dirt adhered on the liquid crystal display screen surface, can effectively clean the impurities on the surface of light-emitting diode epoxy resin materials, does not corrode liquid crystal display screens and substrates, and further has advantages of safety to environment, environmental protection, no toxicity, and no harm.