A ceiling mount LED lamp is provided. The ceiling mount LED lamp includes a securing unit, and a lighting unit. The securing unit includes a frame body, a back plate, a top plate, and a plurality of holding strips. The back plate is positioned at an opposite side of the frame body. The top plate is positioned on the back plate. The holding strips are provided at periphery inner sides of the securing unit. The holding strips have a U-shaped cross-section. The lighting unit is positioned between the frame body and the back plate of the securing unit. The lighting unit includes a reflective sheet, at least one circuit board, a plurality of LED units, a light guide plate, and a diffusion sheet. The ceiling mount LED lamp has a simple structure and can be conveniently assembled and disassembled. Further, it is cheap and suitable for mass production.