The invention discloses LED UV-cured black ink, which comprises, by weight, 20 to 40 parts of self-extinction light-cured resin, 15 to 35 parts of acrylic acid modified rosin resin, 5 to 15 parts of UV monofunctional monomer, 5 to 20 parts of UV multifunctional monomer, 1 to 10 parts of photoinitiator, 0.5 to 8 parts of photochromic pigment, 5 to 20 parts of inorganic black pigment, 3 to 15 partsof light guide powder, 0.5 to 5 parts of carbon black, 0.05 to 0.5 part of leveling agent and 0.05 to 0.5 part of defoamer. According to the LED UV-cured black ink, an LED UV curing technology is creatively adopted, photochromism and light guide technologies are combined, a wet film is formed after a base material is coated with the black ink with high covering power, the same curing efficiency ofthe wet film from the surface to the bottom is achieved through LED UV light curing, and a coating formed after curing meets the performance requirement of thermocuring ink.