The invention discloses a suction nozzle body of vacuum cleaner, which comprises a suction nozzle main body, a suction pipe positioned rotatablely at rear side of the main body, a limiting section rotatablely arranged on the main body for limiting the suction pipe rotate up and down and a limiting section for limiting the suction pipe rotating left-and-right. The invention, with the structure, can limit the suction pipe to rotate both up and down and left-and-right and fix the suction pipe vertically on the suction nozzle body to avoid the converse of the extension tube during using the cleaner so as to further prevent damaging articles and injuring personnel; for the rotation left-and-right of the suction pipe is limited, the invention, when the extension tube is in vertical, can prevent the extension tube from rotating left-and-right.