In this work, we present a two-terminal perovskite (PVSK)-organic hybrid tandem solar cell with nanostructured PVSK as light window and PFN/doped MoO3/MoO3 structure as interconnection layer (ICL). In this tandem structure, the PVSK layer is specially designed with nanostructured surface morphology; thus the PCBM could be filled-up for forming intimately contacted interface with PVSK layers. This design could not only efficiently increase the device performance and also greatly remove the hysteresis of PVSK solar cells. The study indicates that the doped MoO3 as the step layer plays key role in protecting the underlying layer against multi-solution processes and efficient recombination of electrons and holes generated from subcells. The hybrid tandem solar cell could achieve a high VOC of 1.58 V, which is the sum of those in two sub-cells, and a high FF of 0.68, indicating the effectiveness of the multi-layer ICL.