The invention relates to a small-necking-coefficient and large-height-thickness-ratio integrated necking female die and a mold comprising same and mainly aims to solve the technical problems that thebottom half section of a blank of an existing necking female die is likely to be unstable and easily causes scrapping of a manufactured part and waste of materials. The small-necking-coefficient and large-height-thickness-ratio integrated necking female die provided by the invention is a hollow cylinder; a lug boss is arranged at the lower part of the necking female die; the lug boss is uniformlyprovided with a plurality of pull rod holes; and the shape of the generatrix of an inner chamber of the necking female die is designed according to the maximum compatible rule and the rule that threepoints form an arc line. The mold comprising the integrated necking female die comprises an upper die plate, a necking female die body, a plurality of pull rods, protective sleeves, a lower die plate,a lower cushion board, nuts and open gaskets; the upper die plate is arranged on the upper end face of the necking female die; each pull rod is arranged inside the corresponding pull rod hole; each protective sleeve is installed on the corresponding pull rod; each nut is installed at the lower end of the corresponding pull rod; each open gasket is installed at a knife returning groove formed in the middle part of the corresponding pull rod; and the lower cushion board is installed on the lower die plate.