A mounting structure of direct type backlight module light bar comprising a PCB and a plurality of light bars, wherein, two PCB circuit strips are provided for assembling at the two edges of the PCB, the PCB circuit strips are provided with a plurality of the first connectors assembled on, the light bars are provided with a plurality of the second connectors assembled on, the inputting and the outputting of the light bars assembled on the PCB circuit strips with the first connectors are connecting with the second connectors accordingly.