A multi-pin hinge includes a first mounting pin, a second mounting pin, a linkage pin assembly, a first single-pin gear, a second single-pin gear and a double-pin gear assembly. The first single-pin gear is sleeved on the first mounting pin, the second single-pin gear is sleeved on the second mounting pin, and the linkage pin assembly is movably connected between the first mounting pin and the second mounting pin by the double-pin gear assembly. The multi-pin hinge connect two bodies of an electronic device to two mounting pins, thus a first body is rotatable around a second body without directly contacting the second body, thereby avoiding providing a gap or a protruding block on the two bodies. An electronic device using the multi-pin hinge can avoid providing a protruding block and/or a groove, thus the electronic device has a regular appearance and structure.