To provide a modelling material simply carrying out modelling so as to fit a target to be worn without carrying modelling by using troublesome gypsum and capable of wearing it in this state.

Yarns are fused to each other by heating yarns at a prescribed temperature and yarn of a thermoplastic resin curing at lower temperature than a prescribed temperature or yarn of a thermosetting resin curing at a prescribed temperature is used as a knitting yarn to form a knit. When the knit is worn on a target to be modelled, the knit is highly fitted to the target to be modelled without particularly pressing to the target because of high stretchability which the knit has and kept in real modelling state. The modelling state of the knit is retained by heating the knit surface in such state to enable modelling.