To ensure the operational flexibility of multiperiod hydrogen network and reduce the capacity redundancy of compressors, a method for design of multiperiod hydrogen network is proposed based on flexibility analysis. In the proposed method, an initial multiperiod hydrogen network is obtained by solving the single period optimization models of hydrogen networks for each subperiod, where the minimal capacities of compressors in different subperiods are assigned. Then, the flexibility of the initial multiperiod hydrogen network is examined and improved by solving a proposed flexible design model to identify the bottlenecks of operational flexibility of each subperiod. The additional capacities of compressors and flowrates of hydrogen utility in each subperiod are then determined to finalize the design of the flexible multiperiod hydrogen network with the redundancy control of compressors capacities. The application of the proposed method are illustrated via a hydrogen network of a refinery in China. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.