Example folding apparatus and electronic devices are described. In one example, a folding apparatus includes a first housing, a rotating mechanism, and a second housing that are sequentially connected. The rotating mechanism drives the first housing and the second housing to be folded or unfolded relative to each other. The rotating mechanism includes a main shaft assembly, a first transmission arm, a first rotating arm, a first shielding member, a second transmission arm, a second rotating arm, and a second shielding member. When the folding apparatus is unfolded, the first shielding member and the second shielding member approach each other to shield the main shaft assembly.