The invention discloses an aerial turnover technology for a semi-circular body. The technology comprises the following steps: (a) determining the center of the gravity of the semi-circular body, then, positioning main hook hanging points in an arch ring, and an auxiliary hook hanging point on a bottom plate, and using two main hooks and one auxiliary hook for lifting the semi-circular body away from a bottom die; (b) keeping the main hooks still after the semi-circular body is stable, and releasing the auxiliary hook to enable the semi-circular body to reach a balancing position; (c) regulating the main hooks, so that the whole body of the semi-circular body is in a stable state and the bottom plate is kept level, and at the same time, releasing the main hooks and the auxiliary hook to complete the turnover and the piling of the semi-circular body. Through the adoption of the aerial turnover technology, the aerial turnover difficulty of the semi-circular body is reduced, the structure is simple, the operation is convenient, and at the same time, the aerial turnover safety of the semi-circular body is also improved, and the turnover efficiency is improved.