To provide a mounting structure for easily mounting a panel such as a solar panel to a cladding (roof, wall).

A panel mounting structure including a fixing and mounting member E, and an engaging and covering member F, wherein the panel H is secured by inserting and securing a fixing face 24 of the fixing and mounting member E into a gap of a joint portion of the cladding B, also inserting and securing a fixing face 24 of another fixing and mounting member E into a gap of an opposite joint portion, inserting an engaging groove 36 of the engaging and covering member F into an engaging face 31 of the mounting and mounting member E, inserting a panel H into a mounting groove 32 of the fixing and mounting member E, and then folding a covering decorative face portion 33 of the lower end of the engaging and covering member F downward.