The invention discloses a pile foundation type test well building method. The method comprises the following steps that 1, ground well drilling is performed through a drilling machine; 2, the drillingmachine is removed, a test outer well shaft is put down into a drilled well hole, and the position of the test outer well shaft is fixed; 3, a test inner well shaft is put down into the test outer well shaft; 4, a well mouth device is installed at the upper end of the test inner well shaft. According to the pile foundation type test well building method, the problems that an existing test well islong in building period, large in investment and not convenient to maintain and repair are solved.