With the accelerated electrification of railroads, the demand for efficient and durable insulating materials for railroad systems is increasing. Polymer railroad insulators are becoming an indispensable and critical component of modern railroad systems due to their unique advantages. From high-voltage railroad systems to urban railways, polymer insulators are widely used in railroad electrification projects around the world due to their high performance, durability and cost-effectiveness. This paper will take an in-depth look at the use of polymer railroad insulators in different railroad systems and analyze why they are the best choice for railroad electrification projects. 1. Examples of Polymer Railway …