The utility model discloses a three-axis top fly sewing machine, which comprises a stander and a machine board and a machine head and a cloth dragging device which are fixed on the stander. The machine head is provided with a sewing machine needle. The inside of the sewing machine is provided with a three-axis driving mechanism which drives the sewing machine needle to continuously complete the top fly sewing line consisting of sewing line sections in different directions, a touch screen for inputting a control command, and a controller which receives the control command and is electrically connected with the driving mechanism. The cloth dragging device is provided with an inductor for inducing a position of a cloth dragging presser foot relatively to the machine head. An output end of the inductor is connected with the controller. The controller which receives a transmission signal of the inductor and converts the transmission signal into an electric control signal is connected with a servo motor of the cloth dragging device. Therefore, the three-axis top fly sewing machine can sew the sewing lines of the both sides and the bottom of the top fly once. And in the sewing process, the user does not need to stop the machine and manually rotate the cloth. The three-axis top fly sewing machine is efficient and rapid, has good quality, can avoid mutual interference or collision of the machine head and the cloth dragging device, improves the service life of the whole machine and prevents the accident.