In view of the small number of core aggregation nodes in the local network of operators, the coverage area of a single aggregation node is too large, the service access aggregation cannot be realized quickly, and the multi-service access platform (MSAP) equipment is difficult to meet the demand of private line service with the rapid growth of bandwidth. This paper summarizes the capability and cost advantages of access optical transport network(OTN) equipment, and a feasible application proposal for networking deployment of access OTN equipment is put forward.