The progresses of apple cultivated areas，yield，per unit area yield changes in Liaoning province since 2001 were analyzed and studied，with developments of apple industry in Liaoning province as its study object.The results showed the apple orchard areas in Liaoning province declined year by year before 2003，and then rise again between 2001 and 2010.The average percentages in the apple orchard of whole country and fruits cultivated areas in Liaoning were respectively 12.64% and 38.11%.Meanwhile，the apple yield fell between 2001 and 2002 and then enhanced year by year.The average proportions in the apple total output of whole country and fruit total productions in Liaoning were respectively 6.05% and 34.99%.Moreover，the per unit area yield of Liaoning apple went up every year and improved over one times during the 10 years.The average increased rate reached 10% every year.Several suggestions were proposed aimed at the development of apple industry in Liaoning province in future.