The present invention relates to a modularized spliced LED display screen including a plurality of unit screens. When assembling, a certain number of the unit screens are assembled in a splicing frame to form a module screen. A number of the said module screens are assembled horizontally to form a large display screen. The present invention forms a module screen by a plurality of unit screens of the same structure, and then assembles a plurality of module screens horizontally to form a large display screen, and the overall assembly method is simple, and is easy to assemble and disassemble.