The parameter equations of circle, Elliptic and arbitrary polymorphic were deduced by polar coordinates transformation in this paper, and a 2D reconstruction method of irregular particles based on cellular automata theory was introduced, briefly. The particles size and quantity information could be automatic computed by a sectional calculate and residual accumulation algorithm which was developed in this paper. The computed particles size and quantity information had a good agreement with the aggregate actual sieving curve. The corresponding dynamic packing model of 2D fully-graded arbitrary shaped concrete aggregate was further developed, and all kinds arbitrary shaped particles systems' limit accumulation states could be obtained by setting appropriate parameters. The limit packing density of circle particles system was the biggest, up to 79.59%.