The invention disclose a construction method of building 
subway station with fabricated lining combination PBA, which is used to construct a small 
pilot tunnel the initial support; fabrication applies a bar foundation of a lower 
pilot tunnel, a upper 
pilot tunnel applies a side pilling, the outer side of the side The concrete backfilling is used between outer side of the side pilling and the pilot tunnel, a crown beam is moulded, a middle pilot tunnel steel 
pipe concrete the column is dug under the wall a pillar in the middle of the protective wall modifies the top girder; the excavation of the soil under the excavation arch is initially supported by the arch; modifies the arch of primary support, to step on the soil excavation, excavation to post crown beam elevation setting the first level support, down the steps the second earth excavation, construction of the second support, continue to stratified excavation to base; Using integrated 
mechanical equipment to assemble the arching; step five: pre-fabricated side panel and center board; assemble prefabricated roof arch; after the assembling backfill grouting; To form a complete 
station structure. The technical scheme has the advantages that the 
road traffic is not affected the environment 
pollution is small, the quality is reliable, the construction is quick, the overall stability of the 
station can be improved by fabricated component.