[Objective] Through simulating the dynamic changes of land use pattern in the Beibu Gulf economic zone of Qinzhou City and evaluating the ecological environmental benefits of the simulation results to provide a support for local governments and departments.[Methods] Used the TM remote sensing(image) data and experiment/research conducted in 2000 and 2010. Adopted the logistic regression analysis, the CLUE-S(the conversion of land use and its effects at small regional extent) model simulation analysis, and the ecological environment benefits comprehensive evaluation method.[Results] The urban expansion area mainly concentrated in area from the center of Qinzhou City to the coastal town along Qinjiang river basin. The value of ecological service was 213.01 billion yuan under natural growth scenario, and 200.59 billion yuan under planning scenario, and 226.52 billion yuan under ecological security policy scenario. The value closed to the GDP in 2012, but failed to give full play role of the ecological environment, and especially in the planning target scene.[Conclusion] The simulation results of land use pattern are accurate by CLUE-S model in Qinzhou City, which has a good popularization and application value in the Beibu Gulf economic zone.