Abstract: Low wind pressure conductor could reduce the wind resistance coefficient by designing the outer strand shape. However, very few researchers relate to the effects of the outer strand shape of the low wind pressure on ice accretion. To reveal the ice accretion characteristics and key influencing factors, a refined geometrical model of low wind pressure conductors is established. By using the ANSYS Fluent module to delimit the mesh and define the boundary, the ice accretion process is computed with the ANSYS Icing module. The effects of the opening angle of the outer strand (30°, 45°, 60°and 90°), the radius of the small arc at the opening (0.8 mm, 1.7 mm, 2.8 mm, and 3.5 mm), and the radius of the concave arc (7.09 mm, 9.15 mm, 12.09 mm, and 16.9 mm) on the collision coefficient of the low wind pressure conductors and the shape of the ice accretion are discussed and then, compared with steel core aluminum stranded conductor. It is found that the maximum ice accretion mass that occurs at the opening angle of the outer strand is 45°. Moreover, increasing the small arc radius gradually decreases the ice accretion mass. Additionally, with the increase in the concave arc radius, the ice accretion mass and region increase gradually. Compared with steel core aluminum stranded conductor, the ice accretion of the low wind pressure conductor is significantly reduced under short ice accretion (ice mass is reduced by 50.1% when ice is covered for 30 min). Still, the difference is small under long ice accretion (ice mass is increased by 1.65% when ice is covered for 24h).