The invention provides an extracting method for test engineering piles, comprising the following steps of confirming codes and value ranges of pile numbers, and initializing a pile number array according to the codes and the value ranges; appointing the pile numbers respectively belonging to a baring platform group and a bearing force group from the pile number array; setting an engineering pile extracting condition according to basic information of engineering piles and a selected engineering pile testing method so as to confirm the extracting proportion and amount of the pile numbers belonging to the bearing platform group and the bearing force group; randomly extracting the pile numbers according to the extracting proportion and amount of the pile numbers; and correspondingly confirming the test engineering piles according to the pile numbers obtained through random extraction. The extracting condition of the engineering piles is met.