Based upon morphological, physiological and biochemical analysis, 33 strains of lactic acid bacteria were isolated and identified from 11 samples of traditional natural fermented goat milk collected from different individual households in Haixi region of Qinghai. The counts of lactic acid bacteria were 2.5 x 108ෂ3.0 x 10 9 CFU/mL, while yeasts were 2.6 x 10 6 ෂ1.6 x 10 8 CFU/mL. Strains were identified as follows: 7 strains of Lactobacillus delbrueckii subsp. lactis, 4 strains of Lactobacillus delbrueckii subsp. bulgaricus, 3 strains of Lactobacillus acidophilus, 1 strain of Lactobacillus coryniformis subsp. coryniformis, 12 strains of Streptococcus thermophilus, 1 strain of Leuconostoc mesenteroides subsp.mesenteroides, 3 strains of Pediococcus acidilactici, and 2 strains of Aerococcus urinaeequi comb. nov.