Ceiling lamp with adjustable abutting buckle structure

The ceiling lamp comprises a ceiling base and a lamp holder, a light-emitting light source and a light-transmitting mask are fixed to the bottom face of the lamp holder, a buckle concave cavity with the same size as the ceiling base is formed in the top face of the lamp holder, a plurality of abutting groove holes are formed in the side wall of the buckle concave cavity, and the abutting groove holes are communicated with the ceiling base through the light-emitting light source and the light-transmitting mask. An abutting buckling protruding edge is integrally formed at the bottom of the outer wall of the ceiling base, adjustable concave cavities with the number the same as that of the abutting buckling groove holes are fixed to the bottom face of the lamp base, the adjustable concave cavities communicate with the abutting buckling groove holes, abutting buckling blocks are arranged in the adjustable concave cavities, and abutting pressing springs are arranged between the inner side ends of the abutting buckl