Novel insulating oil cylinder

The utility model discloses a novel insulating oil cylinder, comprising a cylinder barrel, a piston rod, a piston and a guiding sleeve, wherein the piston is fixed at the tail end of the piston rod; a guiding ring and a sealing ring are arranged between the piston and the cylinder barrel; the guiding sleeve is arranged at an outlet of the cylinder barrel; the guiding ring and the sealing ring are arranged between the guiding sleeve and the piston rod; the head part of the piston rod is also connected with an earring device which consists of an installation body, an insulating sleeve, a steel sleeve and a joint bearing, wherein the installation body is connected on the head part of the piston rod; the insulating sleeve is arranged in the installation body; and the joint bearing is arranged on the insulating sleeve by a cylinder sleeve. The novel insulating oil cylinder has the characteristics of good insulating performance, long service life and the like, and can be widely applicable to various working conditions with electricity.