To offer an original nail tip preparing mold making method for solving the problems that time is required for adjustment because a ready made nail tip does not fit individual persons in size, a person is kept constrained for a certain time, dust is caused at the site, and processes have to be performed for each preparation.

An entity which is made gelatinous by soaking an acrylic powder 5 with liquid 6, in which acetone, isopropanol, etc. are a principal component, is applied to boundary line portions (a cuticle line) 4 of a finger nail 2 and the skin 3 by a brush 7 and is hardened to pick a pattern, by performing pattern picking of individual original nail tip manufacture, the customer is not constrained and dust is not produced at the side, and repeated manufacture becomes possible.