Based on the investigation of Limonium aureum populations under Haloxylon ammodendron plantations, we studied the development pattern characteristics of the populations in noncrusted sand (early stage NSC1, late stage NSC2), physical crusted sand (early stage PSC1, late stage PSC2) and biological crusted sand (early stage BSC1, late stage BSC2) during the soil crusts development in order to master the influence of soil crust development on population development and the planting technology of the vegetation under H. ammodendron plantations. The results showed that: (1) the soil crust development had a significant promoting effect on the population density. The valuereached the maximum in BSC1 plot, while it had a promoting effect on the individual crown width in the early stage and a inhibiting effect in the late stage. It reached the maximum in NSC2 plot, thus leading to the instable change of the total population coverage. (2) The development value of population individual increased firstly and then decreased, and reached the maximum in NSC2 plot. In the development process of NSC1NSC2 promoted the population individual development and the value gradually increased, while in the development process, NSC2BSC2 can inhibited the population individual development and the value gradually decreased. (3) The dominant layer of the population is located in the lower layer, with the soil crust development. The value increased firstly and then decreased. The peak value is in BSC1 plot, while the higher the population layer is, the peak value gradually moved to the earlier stage, and the peak value is in NSC2 or PSC1 plot. The above analysis showed that the soil crust development promoted the population density, but it promoted the population individual development in the early stage and inhibited in the later stage. The conclusion had positive guiding significance for the establishment of the L.aureum vegetations under H.ammodendron plantations.