Based on the data of urban construction land of Xining City in 2008, the assessment index system was chosen, the index weights were decided and the integrative assessment model was established. Taking the sample plots as the representative function area, land use intensive degree of each function area was calculated out by the integrative evaluation method, and the evaluation result was analyzed. The results showed that the intensive level of urban construction land use was moderate in Xining City. The areas of land intensive, appropriate and low use were 542.13, 546.56, and 2 094.99 hm2, respectively. The potentiality of land intensive use was mainly concentrated in residential land and industrial land.