PROBLEM TO BE SOLVED: To provide a guide wire shaping aid for improving workability when performing shaping at the tip part of a guide wire and also suitably preventing the break of the guide wire.SOLUTION: The aid 10 is provided with a flat plate part 20 including: a holding surface 21 for holding the guide wire by pressurization and a pressurization surface 25 which is formed on a side surface arranged successively from the holding surface and pressurizing the guide wire when folding the tip part of the guide wire held by the holding surface, to form a folding starting point.COPYRIGHT: (C)2012,JPO&INPIT【課題】ガイドワイヤの先端部に形状付けを行う際の作業性を向上させるとともに、ガイドワイヤの破損を好適に防止し得るガイドワイヤ形状付け用補助具を提供する。【解決手段】補助具10は、ガイドワイヤを押さえ付けて保持させる保持面21と、保持面に連なる側面に形成され、保持面によって保持させたガイドワイヤの先端部を折り曲げるときに、ガイドワイヤを押し付けて折り曲げの起点を形成させる押し付け面25と、を含む平板部20を備えている。【選択図】図1