The utility model discloses a quenching frock suitable for long and thin type foraminiferous part, it includes base (1) and installs in base (1) support column (2) all around, base (1) including frame(1.1) with install support (1.2) in frame (1.1), wherein, support (1.2) constitute by a plurality of cross arrangement extension board (1.3), be provided with on junction (1.4) of intercrossing extension board (1.3) longitudinal arrangement stainless steel positioning guide pillar (3). The beneficial effects of the utility model are that: install between the part that will wait to stack stainlesssteel positioning guide pillar can, avoided long and thin type of part owing to stack the inappropriate deformation that causes, bending, improved long and thin type of mould utility life -span and high cycle fatigue performance, adopting threaded connection between stainless steel positioning guide pillar and the extension board, being applicable to long and thin type of part of different specifications, the installation is very convenient, has improved the availability factor of device.