The paper analyzes the impact and damaging mechanism of stress releasing hole in precast pile foundation engineering,studies design and construction methods of stress releasing hole by combining with engineering examples. Timely monitoring shows that:stress releasing hole ap-plied in construction guarantees surrounding building safety.%分析了应力释放孔在预制桩桩基工程中的影响及破坏机理，结合工程实例，对应力释放孔的设计及施工方法进行了研究，通过实时监测表明：施工中采取的应力释放措施确保了周边建筑物的安全。
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