A vacuum cleaner floor brush and a vacuum cleaner having same are disclosed. The vacuum cleaner floor brush (B) comprises a casing (100); an air inlet (111) is provided at a bottom surface of the casing; a sealing strip is provided at the periphery of the air inlet, comprising a first sealing strip and a second sealing strip; the first sealing strip is provided with a first opening (310); the first opening can be in the opened or at least partially blocked state by means of the movement of the second sealing strip to adjust the air flow at the air inlet (111). By controlling the movement mode of the sealing strip arranged on the floor brush, the vacuum cleaner floor brush and the vacuum cleaner thereof can effectively adjust the air flow at the air inlet, attain simplification of structure and convenience of operation, adapt to different working surface requirements, and improve the efficiency of dust collection.