This paper introduces the experience for solving the alternate contradictions between design and construction, between design and procurement as well as between procurement and construction associated with an extending project of 1 × 107 t / a refinery equipment in Guangzhou Petrochemical Company. 文章结合广州石化千万吨炼油改扩建工程,介绍了如何解决设计与施工交叉、设计与采购交叉、采购与施工交叉的矛盾的经验。