Abstract: HyperFLOW,a structured/unstructured hybrid CFD software, is introduced in this paper. For HyperFLOW, the structured solver runs on structured grids, while the unstructured solver runs on unstructured grids, in order to fully take advantages of both grids and solvers. The architecture of HyperFLOW is briefly introduced firstly. Then, some typical cases are tested to validate both the structured and unstructured solver, including the Trap-Wing configuration from HiLiftPW-I and the DLR-F6 wing-body configuration from DPW-II. The performance of grid convergence is studied for both solvers. The numerical results demonstrate that HyperFLOW has good grid convergence property on both structured and unstructured grids. The computational results match well with the reference and experimental data, indicating acceptable credibility.