This utility model discloses a photovoltaic module installation structure for the side of a traffic road, comprising: vertical columns spaced apart in the left-right direction, with a support plate on the front side of the vertical columns; connectors, with their left and right ends supported by corresponding support plates and connected and fixed to the support plates; a fixing component including a connecting block and a pressure block, the connecting block being connected to the connector, the pressure block being connected to the front end of the connecting block and protruding vertically from the connecting block, the pressure block, the connecting block, and the connector forming a groove; and a photovoltaic module, with its bottom and top embedded in the corresponding groove and pressed by the pressure block to fit snugly against the connector. This utility model achieves the positioning, installation, and fixing of the photovoltaic module by embedding its bottom and top into the groove and applying pressure with the pressure block to ensure a tight fit with the connector, thereby reducing installation gaps, avoiding vibration and
noise caused by installation gaps, simplifying installation steps, reducing installation time and labor costs, and improving construction efficiency.