The invention discloses a pressure balance type inverted cock valve which comprises a valve body, a cock, a valve rod and padding. The cock is an inverted conical cock with the lower end being larger than the upper end. The cock is arranged in an inner cavity of the valve body, the valve rod drives the cock to rotate, a sealing face of the cock is a conical face, the valve rod is connected with the cock through a cross connector, a cylindrical spring or a belleville spring is arranged between the valve rod and the cock, the lower end of the valve body is fixedly provided with a valve cover, and the valve cover is provided with an adjustment shaft. The lower end of the adjustment shaft penetrates out of the valve cover, and the upper end of the adjustment shaft abuts against the cock. the lower end of the cock is provided with a first check valve, a sealing grease groove is formed in the sealing face of the cock, an oil storage tank is arranged in the valve body, the oil storage tank of the valve body is communicated with the sealing grease groove of the cock, and an oil filling valve communicated with the oil storage tank is arranged outside the valve body. The pressure balance type inverted cock valve can be used under high temperature, high pressure and severe work conditions, and has the advantages of being reliable in sealing, small in operation torque, long in service life, and the like.