Starting from aspects of foundation treatment,support setting,template installation and steel pre-set,the paper introduces construction technologies and operation points of prestressed cast-in-situ box girder,and describes construction quality control measures,which further im-proves the bridge engineering construction level.%从地基处理、支架搭设、模板安装、钢筋预设等方面，介绍了预应力现浇箱梁的施工工艺与操作要点，并阐述了施工质量控制措施，进一步提升了桥梁工程的建设水平。
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