Steel reinforced concrete supporting pile (referred to stiff pile) is a kind of concrete pile configured with steel. Rotary drilling pile is honored as a Green Construction Technology. The organic combination of the two, not only greatly improves the efficiency of construction, but also strengthens the pile bearing capacity for the shape steel encased with. This way of construction, ensuring foundation pit stability in excavation, conforms to the green environmental protection and industrialization at the same time. Quasi-static tests were performed on 3 specimens to study the structural behavior of reinforced concrete pile with infill shape steel. Overall behaviors of the SRCSP such as bearing capacity, deformation capacity and ductility were inspected. The finite element analysis was conducted to simulate the load-deformation curves of the three specimens. The simulated and experimental results agree very well. Then this paper briefly describes the combined effect and construction process of the combination of SRCSP and rotating drill construction process. By analyzing the construction technology and application, good social and economic applicability is concluded, so the construction methods can be used in the corresponding foundation pit project for reference.