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The aim of this research was to study protein mineral and vitamin contents in 19 local rice varieties 36 samples collected from Loei province. Determination of Nutritional value of 36 samples showed that it consisted of 7.16±0.15-11.05±0.12 g/100g protein. Khao Niaw Dum Luempua (LR22) showed the highest phosphorus content were 263.85±0.19 mg/100 g. Analysis the amount of iron and calcium by flame atomic absorption spectrophotometry (FAAS). Found that the concentration of iron was the highest content in Khao Homtung (LR7) were 7.31±0.14 mg/100 g, And calcium content highest in Khao Niaw Dum Luempua (LR22) as 11.15±0.24 mg/100 g. In the analysis of all three vitamins by high performance liquid chromatography (HPLC). Khao Sum Bine (LR14) showed the highest beta carotene content were 0.08±0.14 mg/kg. While not detecting beta carotene in local rice varieties 15 samples including Khao Plah Sew Noi (LR3) Khao Hom Sa Ngiem (LR6) Khao Homtung (LR7) Khao San Pa Tong (LR12) Khao San Pa Tongdor (LR13) Khao Soviet (LR15) Khao San Ti Bal (LR16) Khao Lom Pee (LR17) Khao Laotaek (LR19) Khao Plah Sew Noi (LR20) Khao Hom Sa Ngiem (LR27) Khao Homtung (LR28) Khao Phare (LR30) Khao Maw (LR31) Khao Dang (LR32) and Khao Plah Sew Noi (LR35). The results showed that the highest alpha tocopherol and thiamine contents were found in Khao Niaw Dum Luempua (LR36) were 16.18±0.09 and 12.08±0.18 mg/kg respectively. The results of this study are useful as basic data for consumption of rice, Supporting cultivation and preserving local rice. Moreover further product development.
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