PROBLEM TO BE SOLVED: To provide an automatic feeding method capable of appropriately adjusting and controlling the amount and time of feeding to cultured fish. SOLUTION: An automatic feeding device 1 for feeding cultured fish according to a feeding schedule of preset conditions preliminarily input to a cloud server 6, a network camera 3 for photographing the predation status of the cultured fish, and the amount of feeding per day and optimum. A method for automatically feeding cultured fish using artificial intelligence (AI) that performs machine learning for determining the feeding time and determining the activity of the cultured fish during predation. The method of feeding the cultured fish during the feeding time from the automatic feeding machine Whether or not the activity is high is determined by the artificial intelligence by analyzing the live image captured by the network camera, and the feeding from the automatic feeding machine is adjusted and controlled based on the determination result. [Selection diagram] Figure 1
