The application discloses a mounting method of photovoltaic panels, and steps of the method comprise the following steps: S1, fixing one end of a first supporting cable and a second supporting cable on a first base; S2, using a traction device to pull the first supporting cable and the second supporting cable, the distance between the initial position of the traction device and the first base is L, L is greater than the width of one photovoltaic panel and less than the width of five photovoltaic panels (the width refers to the length value of the photovoltaic panel along the length direction of the first supporting cable), and installing photovoltaic panels on the first supporting cable and the second supporting cable between the traction device and the first base; S3, moving the traction device away from the first base, and continuing to install photovoltaic panels along the moving direction of the traction device; S4, repeating the step S3 until the installation is completed, and fixing the other end of the first supporting cable and the second supporting cable on a second base. The method of the application has the advantages of simple construction condition, convenient installation and the like when installing on site.
