The invention discloses an LED display structure comprising a face mask and a bottom shell, wherein the face mask and the bottom shell are connected in a dismountable way to form the outer shell of the LED display structure; a circuit board is fixed in the bottom shell; a plurality of groups of LED lamp groups are uniformly arranged on the circuit board; the circuit board also comprises a power interface and a signal interface; a panel of the bottom shell is provided with through holes at the positions corresponding to each LED lamp group; the inner side of the face mask is provided with blind holes matched with the through holes at the positions corresponding to each through hole; a clamping slot is opened at the outer side of the panel of the bottom shell close to the peripheries of thethrough holes; sealing rings are arranged in the clamping slot; the LED lamp groups are positioned in the through holes and the top thereof are sealed by the blind holes; the connecting parts betweenthe blind holes and the through holes are sealed by the sealing rings; and the outer side of the circuit board in the bottom shell is poured with potting adhesive to form a sealing layer used for sealing the circuit board. The LED display structure has the advantages of good tightness, convenient maintenance and the like.