A silver halide photographic light-sensitive material comprising a support having provided thereon a silver halide emulsion layer comprising silver halide grains, at least 70% of a total projected area of said silver halide grains comprising silver halide tabular grains having an aspect ratio of less than 8, and having at least two twin planes, an average ratio (t/l) of thickness (t) to a longest distance selected from the distances between adjacent twin planes (l) of said tabular grains being not less than 7, said tabular grains having two principal plane faces comprising (111) faces, and side faces comprising (111) and (100) faces, a maximum of 90% of said side faces being (111) faces.