The utility model discloses a display screen assembling module, which comprises a case body and at least two display modules, wherein a window corresponding to the display modules is formed on a mounting surface of the case body; each display module comprises a front display surface and a bottom surface which are opposite, and also comprises a clamping device and a clamping component; the clamping device comprises an operating rod or an operation hole; the operating rod comprises an operation end and a driving end; the operation end is positioned on one side of each front display surface or one side of the bottom surface of each display module; the driving end extends to the inner part of each display module; the clamping component comprises a transmission part and a clamping part; the transmission part is pivotally connected with the driving end of the operating rod; the transmission part of the clamping component drives the clamping part to transversely stick into or transversely deviate from the edge bottom wall of the window formed on the case body; and space used for clamping the edge of the window formed on the case body is formed between the clamping part and the bottom surface of each display module when the clamping part transversely sticks into the edge bottom wall of the window formed on the case body. The display screen assembling module has the advantages of convenient and fast installation and disassembly as well as smaller thickness.