In a pile foundation project in Fuyang, the originally planned construction at the foundation pit bottom is changed to be on the ground, and nearly 14m hollow piles should be added in adition. Therefore, some related problems affecting the construction quality of engineering pile are produced, such as pile location, slag thickness at hole bottom, position of reinforcement cage, concrete quality, elevation of concrete pile top and so on. This paper introduces the construction situation, and the experience can be used as reference for similar projects.