Abstract: Design and implementation of urban forest ecological benefits evaluation system were introduced based on webGIS.UFORE methods were used in this system to estimate ecological benefits of urban forest.The system showed the field data and the spacial data in detail with webGIS platform，and showed the statistics results and the evaluation results with thematic maps，gave us more beautiful humancomputer interface and more extendibility.The system improves level of urban forest management and accuracy rate of urban forest ecological benefits evaluation.