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The traditional apple plant regions in China have entered the renewal period while the replant problems restrict the development of apple industry.Therefore, it is urgent to disclose the bacteria community both in replant problem apple orchard soil and in high yield apple orchard soil and furthermore, reveal the relationship between bacteria community and apple replant problems.T-RFLP (Terminal Restriction Fragment Length Polymorphism) was adopted in this paper, and the soil samples covered 9 counties in Bohai Bay Zone at 0-20cm and 20-40cm horizon levels.