As a key protective component of urban underground pipeline networks,the durability of Cable trench cover is directly related to the safe operation of infrastructure such as power and communication.With the breakthroughs in materials science and manufacturing technology,modern Cable trench cover have evolved from traditional"vulnerable parts"to"engineering durable goods"with a lifespan of one hundred years.This article analyzes the core elements of Cable trench cover durability from three dimensions:material innovation,environmental adaptability,and full lifecycle management.