The invention relates to the field of insulators and particularly relates to a 10kV anti-pollution flashover vertical type composite insulator, including a lead seat, an insulating rod, silicone rubber umbrella skirts and a cross arm connection sleeve. The silicone rubber umbrella skirts comprises a U-shaped umbrella skirt at the top part, a middle umbrella shirt at the middle part, a lower umbrella skirt at the lower part, and an insulation sleeve body connecting the U-shaped umbrella skirt, the middle umbrella shirt and the lower umbrella skirt. The structure of the U-shaped umbrella skirt comprises an umbrella base part and an umbrella edge, the umbrella edge is bent upward to form openings at two sides of the U-shaped umbrella skirt, and the opening direction is identical to the extesion direction of the lead. Compared with the prior art, the 10kV anti-pollution flashover vertical type composite insulator has the beneficial effect that 1) the structure is simple and has a good protection function for the safe operation of the equipment, so that the cross arm discharge accident due to the water flow and the ice pillar under adverse weather conditions is avoided; and 2) the connection compatibility with the conventional 10kV power distribution linear pole is better, and the upgraded construction of the conventional vertical type insulator is facilitated.