The invention relates to a hydrogen fuel cell vehicle control system, in particular to a fuel cell automobile power matching system. The system comprises a hydrogen-containing fuel cell set, a multi-pipeline hydrogen supply pipeline system, a voltage stabilizing mechanism, an electromagnetic valve, an intelligent controller, an automobile driving speed measuring device and a signal feedback device. One end of the multi-pipeline hydrogen supply pipeline system is connected with a hydrogen storage bottle set which is connected with an electromagnetic pressure reducing valve, and the other end ofthe multi-pipeline hydrogen supply pipeline system is connected with the hydrogen-containing fuel cell set with a multi-caliber air inlet; the signal feedback controller controls the multi-pipeline hydrogen supply pipeline system to select a proper-caliber ventilation pipeline, and the pressure adjustment of the electromagnetic pressure reducing valve is also controlled by the signal feedback controller. According to the matching system, the power of a cell and the required power of an automobile are consistent, so that the situation that fuel cells cannot be used due to excessive power generation and accordingly waste is caused or the power of the automobile is insufficient due to insufficient power generation of the cells is avoided, and then the purpose of increasing the fuel utilization rate is achieved.