A protector cover that protects multiple collected wire terminal group splices while reducing the space occupied by the wire harness by locating the protector cover on the wire harness. The protector cover encloses solder joined terminal group splices formed at the ends of branch wires that separate from trunk wires of a wire harness. Multiple caps, each into which a terminal group splice is inserted, are formed at intervals on one or both sides of a planar support member, and a taping flange is formed as an extension at the open end of the caps. A terminal group splice is inserted into each cap and secured therein by a tape wrapping that encompasses the taping flange and the branch wires. The planar support member is then attached to the circumference of the trunk wires through a tape wrapping.