In order to analyze the population dynamics of Gansu Zoker(Myosp alax cansus) , It is necessary to know its natality, survivorship rate and mortality,etc.The static life table is set up on the basis of agestructure and sexratio of 515 zokers collected from Xiji county, Ningxia Autunomous Region during Apr.1991-Jun.1993.Some essential population data obtained from the life table are as follows: The net reproductive rate(R₀) was 1.8075.The innate increase capacity(r_m) was 0.4056.It takes about 20 months for its population doubling .The finite increase rate (λ) was 1.0023. The survivorship curve and mortality curve were drawn up. This data indicated that the increment of Gansuzoker in population was slow and stable. The information above will be useful in the zoker population control.