Abstract: Hybrid modular multi-level converter (MMC) can use full bridge sub-module (FBSM) to clear DC faults. However, the FBSM accounts for a large proportion in existing projects, and reducing its proportion can help reduce the investment cost and operation losses of MMC. Therefore, this paper proposes a DC fault ride-through scheme of hybrid MMC with low FBSM proportion. By temporarily weakening voltage support ability of MMC on the AC side, the hybrid MMC with low FBSM proportion has the same fault ride-through capability as existing proportion. Furthermore, the controller design and the construction of auxiliary energy-dissipation branches make the scheme applicable to ultra-large capacity MMC systems. Finally, the effectiveness of the proposed scheme is verified in PSCAD. The results show that the number of FBSMs can be reduced by 41.2% while maintaining the same fault ride-through capability, potentially lowering the demand for FBSMs in future projects.