The purpose of the study is to discuss the problem of strontium isotope analysis used to identify non-local individuals at Taosi site. Tooth enamel samples from 14 domestic animals individuals were analyzed for strontium isotope ratio (87Sr/86Sr), by the thermal ionization mass spectrometry, including 5 pigs, 5 sheeps/goats and 4 cattles. Molar were sampled whenever possible in faunal species. According to the local strontium isotopes ratio range determined by the mean 87Sr/86Sr ratios ±2 s.d. of 5 pig enamel samples (0.711 314~0.711 044), the authors found that 2 sheeps and 2 cattles from the Taosi site fell well outside the local strontium isotopes ratio range and were considered to be non-local. The extreme distribution of the outliers suggests they came from different geographically locations. This shows that the people of the Taosi inside access to meat resources in different ways.