The invention discloses a burner cap, a burner and a burning cooking tool. The burner cap is provided with a fuel gas chamber, a gas inlet hole which communicates with the fuel gas chamber and a fuelgas pipeline, and burning fire holes which communicate with the fuel gas chamber, wherein each burning fire hole comprises an outer circle fire hole which is positioned in the circumferential edge ofthe burner cap; each outer circle fire hole comprises a circumferential flame stabilizing groove which is circumferentially formed along the burner cover, and an upper flame stabilizing groove which is positioned above the circumferential flame stabilizing groove; and each circumferential flame stabilizing groove communicates with the corresponding upper flame stabilizing groove. According to thetechnical scheme, the burner cap has the advantages that the fuel gas burning efficiency is greatly improved; and meanwhile, the flame stability is effectively improved.