The present invention relates to a thermoplastic cast which is easy to reuse or implant, and to a production method for same. The cast according to the present invention comprises: a core material (10) to which is attached polycaprolactone while being made in a mesh shape by the mutual crossing over and connecting of threads having a predetermined diameter, with the weaving of a plurality of strands of thin threads； and a structure (20) which is made using a polycaprolactone composite and is formed so as to surround the outer part of the core material (10) by means of insert injection. With the present invention, the patient experiences no discomfort despite the invention being structurally robust, because ventilation properties are improved due to the cast being formed in a mesh shape and because the structure, which is made using the polycaprolactone composite, is formed so as to surround the outer part of the core material by means of insert injection.
