A field study was conducted to evaluate the phytoremediation of Cd-contaminated soil utilizing the Cd hyperaccumulator Beta vulgaris var.cicla L. during one growing season (about two months) on farmland in the long-term and representative wastewater irrigation area in Northeast China. Results showed that Beta vulgaris var.cicla L. had a relatively high biomass. Planting density had a significant effect on the plant biomass and on overall Cd phytoextration efficiency. The addition of organic manure promoted the growth of Beta vulgaris var.cicla L. but inhibited the Cd removal. The Cd removal efficiency of Beta vulgaris var.cicla L. can reach 14.46 mg/m2 during one growing season, and it can be expected to achieve a higher Cd removal of the year by enhancing the planting batches. The research in this paper provided the model and technical demonstration for the large-scale phytoremediation of Cd contaminated farmland soils.