The invention discloses luminous printing colorant. The luminous printing colorant comprises the following components by mass: 1 parts of a rare earth luminous material, 0.25-1 part of a dispersing agent, 0.8-3 parts of a mesosome, 0.1-0.3 part of an initiator, less than or equal to 0.05 part of dyestuff, 0.8-2 parts of a waterborne adhesive and 0.1-0.5 part of a thickening agent, wherein the rareearth luminous material comprises one or more of Sr(NO3)2, Al(NO3)3.9H2O, Eu2O3 and Dy2O3. On the basis of features of printing of textile, the prepared colorant is applied to a textile fabric, printing fabrics and coating textile fabrics which contain the rare earth luminous material are prepared, the products have appearances and various properties of conventional textile printing and coating fabrics, and furthermore, printing patterns or a whole fabric can be luminous in a dark environment after being illuminated.