Method for building underground subway station in road by using large nested jacking pipe

The invention discloses a method for constructing a buried subway station in a road by using a large nested jacking pipe. The method comprises the following steps: step S1, constructing open-cut working wells which are laterally arranged at two ends of a construction road as starting wells or receiving wells of the large-section jacking pipe; s2, pipe jacking equipment is erected in the open excavation working well, firstly, a large-section pipe jacking channel under the road is completed through jacking, and the large-section pipe jacking channel considers starting or receiving of a small-section jacking pipe, translation of a small-section jacking pipe joint and the space requirement for muck and material transportation; and S3, a small-section pipe jacking machine and small-section pipe jacking pipe joints are translated and transported in the large-section pipe jacking channel, small-section jacking pipes are launched or received in the large-section pipe jacking channel, the small-section jacking pipes a