Solid oxide is highly valued because of a series of advantages, among which the tubular solid oxide fuel cell is the closest configuration to practicalization. In this paper, the anode-supported tubular solid oxide fuel cell is studied to establish a three-dimensional numerical model of a single cell using a multi-physics field numerical simulation method. By studying the changes of the cell operating state when changing some physical parameters and geometric shapes such as operating temperature and anode thickness, some theoretical basis and data is provided for the future optimization of the anode-supported tubular solid oxide fuel cell.