The regional differences of natural environment and social environment determine imbalance development for PRED system in the crisscross zone of agriculture and animal husbandry in the northwest part of China.Therefore,only by relying on regional industrial structure adjustment and upgrade,the region can exert its comparative advantages and obtain maximal integral profits of both special economy and natural environment for regional sustainable development.The south mountainous region of Ningxia is a typical crisscross zone of agriculture and animal husbandry in the northwest part of China.Development for the complicated system of economy,society,environment and culture greatly depends on regional industrial structure advancement and rationality.To accelerate industrial structure adjustment,develop eco-industry and transform traditionally extensive economy models into intensive eco-economy models are the key to boost the beneficial cycle of environment and regional sustainable development.