In this study, the chemical compositions of fruits Nitraria roborowskii Kom., Nitraria sibirica Pall., Nitraria tangutorum Bobr. were investigated. The highest total flavonoids content were observed in Nitraria sibirica, which had the highest crude protein content (6.60 %), followed by Nitraria tangutorum (3.07%) and Nitraria roborowskii (2.65 %). The total sugar content of Nitraria species varied between 4.66 % and 5.31 %, total fat between 0.143 and 0.537 %, pH 3.81 and 4.29, respectively. Mineral compositions of the Nitraria species were 4530.2 mg/g Na, 3778.9 mg/g K, 681.0 mg/g Ca, 349.0 mg/g Mg, 301.8 mg/g P, 25.2 mg/g Fe, 4.3mg/g B, 2.6 mg/g Sr, 1.1 mg/g Co and 0.6 mg/g Cr.