The pre-bored grouting planted nodular pile is a type of composite pile foundations which consist of a precast pile and the cemented soil surrounding the pile. A simplified approach to calculating the settlement of a single pre-bored grouting planted nodular (PGPN) pile in homogeneous soil is proposed based on the ideal elastoplastic model; and the composite modulus of the PGPN pile is adopted in the calculation process. In addition, the varying modulus along the pile shaft and the function of the enlarged pile base are also considered in the calculation process. The settlement calculation approach of the PGPN pile in layered soils is then proposed based on the calculation approach in homogeneous soil. The proposed calculation approach is validated by comparing the calculated load-displacement curves of the test piles to the measured load-displacement curves. The skin friction of the PGPN pile is close to the skin friction of the precast pile foundation, demonstrating that the frictional capacity of the cemented soil-soil interface of PGPN pile is better than the frictional capacity of the pile-soil interface of the bored pile.