A control method, a device, and a tile laying system. The control method is used for at least controlling a tile laying robot to lay floor tiles. The tile laying robot comprises a pitch mechanism (90), a yaw adjustment mechanism (100) and a mechanical arm. The control method comprises: controlling a tile laying robot to grab a floor tile to be laid; controlling a pitch mechanism (90) and a yaw adjustment mechanism (100) to rotate, so that a predetermined surface of said floor tile is parallel to a slurry surface, and the predetermined surface is perpendicular to the thickness direction of said floor tile; controlling the mechanical arm to move such that the distance between said floor tile and an adjacent floor tile that has been laid is within a first predetermined range; and controlling the mechanical arm to move in height direction, so that the distance between said floor tile to be laid and the slurry surface in the height direction is within a second predetermined range. The control method enables a tile laying robot to automatically lay floor tiles quickly, improving the construction efficiency of tile laying, and improving the accuracy of tile laying by means of control.