本文提出了实散组合桩概念，即一根桩由上下两段组成，上段是实体桩，下段是散体桩。这样就克服了散体桩通常桩头承载能力低的缺陷。本文对实散组合桩的受力概念进行了分析研究，给出了其承载力、沉降、临界桩长等计算方法和公式。最后介绍了首次工程实例。 This paper proposes the concept of solid composite piles, that is, a pile composed of upper and lower two sections, the upper section is a solid pile, and the lower section is a bulk pile. This overcomes the defect that the bulk piles generally have low bearing capacity. In this paper, the concept of the force of the composite pile is analyzed and studied, and the calculation methods and formulae such as its bearing capacity, settlement and critical pile length are given. Finally, the first engineering example was introduced.