The invention relates to a busbar structure for a power distribution system. The busbar structure comprises first and second busbars arranged in parallel; a conductive member which has a first end electrically connected with the first busbar and a second end electrically connected to the second busbar, and which is electrically connected to a capacitor. The busbar structure can connect various low-voltage DC power sources in a low-voltage DC system to realize the mutual power aid among the low-voltage DC power sources, that is, each low-voltage DC power source can supply power to a local loadand can be connected to the busbar, thereby improving the utilization rate of DC converters in the low-voltage DC power sources and solving the problem of low utilization rate of the DC converters caused by the different loads of the respective low-voltage DC power sources in the low-voltage DC system.