“As the core component of hydrogen fuel cell vehicles, the on-board hydrogen supply system has become one of the key bottlenecks restricting the development of hydrogen fuel cell vehicles in terms of achieving complete hydrogen cycle utilization and improving hydrogen utilization efficiency. This article introduces its research progress in the field of hydrogen fuel cell vehicles, and researchers have sorted out 8 hydrogen supply system modes and the current status of key component technologies, laying the foundation for the development of hydrogen supply system cycle modes.”