The present invention relates to a functional composite including natural minerals and a plastic container including the same and, more specifically, a functional composite, capable of increasing the stability and preservability of foods by including natural minerals such as crystal, quartz, topaz, tourmaline, red clay, perlite, and diatomite, and a plastic container including the functional composite. [Reference numerals] (AA) Comparing an existing method with a T133 method (Aw ↓); (BB,HH) Drying; (CC,JJ) Salting; (DD,KK) Preserving in sugar; (EE,II) Freezing; (FF,LL) Additive; (GG) Free water (percentage) reduction; (MM) Artificial & addition method; (NN) Combined water (percentage) increase; (OO) Food ingredients; (PP) T133 energy; (QQ) Non-addition & packaging method본 발명은 수정, 석영, 황옥, 전기석, 황토석, 진주암 및 규조토를 함유한 천연광물을 포함하여, 이를 처리한 대상물질의 보존성 및 안정성을 증진시키는 기능성 조성물 및 이를 함유한 플라스틱 용기에 관한 것이다.