Abstract: An ablation system comprises: an information processing module and a signal input/output module having communication connection. The signal input/output module is used to connect at least one medical catheter, and when the medical catheter outputs ablation energy, the signal input/output module acquires spatial position information of an ablation site according to a current position of the medical catheter, and sends the spatial position information of the ablation site to the information processing module; and the information processing module is used to acquire target spatial position information according to a target ablation point, periodically calculate position information to be compared according to the spatial position information of the ablation site within a predetermined time period, and periodically compare the position information to be compared with the target spatial position information to generate ablation prompt information.