According to the upgrading and reconstruction requirements of a sewage treatment plant,this paper made comprehensive and compara-tive analysis on present common used several deep treatment technology,active sand filter,fiber rotary disc filter and precision filter,the results showed that the process has its characteristic,should according to different requirements to choose suitable treatment process,according to the cover area,process and cost needs,the project ultimately selected precision filter treatment process.%根据某污水处理厂提标改造要求，对现今常用的几种深度处理工艺：活性砂滤池、纤维转盘滤池和精密过滤器进行了综合对比分析，结果表明工艺各有特点，应根据不同的使用要求选择合适的处理工艺，该工程根据占地、流程和成本需要最终选择精密过滤器处理工艺。
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