The invention discloses a light-traffic changeable-message-sign display module, and belongs to the technical field of LED display screens. The display module comprises a shell, a lamp-tube installingplate and a face mask; the lamp-tube installing plate is fixed on the shell, the face mask covers on the lamp-tube installing plate, and the shell, the lamp-tube installing plate and the face mask arecombined into a whole module; multiple LED light emitting units are installed on the lamp-tube installing plate; multiple through holes avoiding the light emitting units are formed in the whole module; an intersection of horizontal projections of the two ends of the through holes is an empty set. According to the light-traffic changeable-message-sign display module, the through holes are formed in the whole display module, a ventilating effect of the display module is achieved when the display module is used outwards, and the anti-wind capacity can be effectively improved; meanwhile, a part structure and the glue filling amount of the module can be decreased through hole opening, and the aim of reducing the module weight is achieved. The two ends of the through holes of the module are subjected to high-low special designing, and from the front face, hole opening positions are light-proof, and the contrast degree is lost.