The invention relates to a vibration sinking tube compacted gravel-concrete combined pile and a construction method thereof which belong to the technical field of soft soil foundation treatment and pile foundation. First, a lower compacted gravel pile is formed in a sinking tube cavity through a vibration sinking tube method, and then concrete is poured into the upper part of the sinking tube cavity to form a bored concrete pile, and finally the vibration sinking tube compacted gravel-concrete combined pile is formed. The vibration sinking tube compacted gravel-concrete combined pile belongs to the range of rigid pile. The inventive construction method is not only used as a composite foundation method to treat the soft soil foundation, but also directly used as a pile foundation or a file buoyant foundation or the like to be directly applied to the foundation such as building, dock and so on. The novel pile has a pile diameter up to around 1m, a pile length up to around 25m. The permeation of the concrete slurry at the bottom of the bored concrete pile forms the effective connection of a concrete pile section and a compacted gravel pile section. Compared with the common cast-in-situ concrete pipe and other rigid piles, the novel pile can reduce the project cost under the premise of ensuring the overall performance of the pile body; and compared with the common vibration sinking tube compacted gravel pile and other piles made of bulk material, the novel pile can improve the strength of the pile body, improve the vertical bearing capability and the horizontal bearing capability and the like. The pile has the advantages of simple construction process, strong operability, convenient quality control and detection, and high single pile bearing capability.