A spinning machine comprising: an air-jet spinning device adapted to form a yarn (Y) by an action of a swirling air current; wherein the air-jet spinning device includes a nozzle block and a hollow guide shaft ; a passageway and plural second nozzles being arranged in the hollow guide shaft ; the passageway being adapted to guide the yarn (Y) to the outside and the second nozzles being adapted to allow passage of air that is injected into the passageway ; a yarn catching device adapted to catch an end of the yarn (Y) from the air-jet spinning device by suction; wherein the spinning machine further comprises a controller (10; C) adapted to control, during a period when the yarn catching device catches the end of the yarn (Y), at least one of the air-jet spinning device and the yarn catching device so as to execute at least one operation out of a first operation performed by the air-jet spinning device and a second operation performed by the yarn catching device , wherein the first operation is an operation of changing an air pressure in the air-jet spinning device from a first air pressure to a second air pressure that is different from the first air pressure at a time when the end of the yarn (Y) is guided to the outside when the air is injected from the second nozzles of the air-jet spinning device , wherein the second air pressure is lower than the first air pressure and the air-jet spinning device is configured to guide the yarn with the second air pressure at the time when the yarn catching device starts to suck the yarn end and the second operation is an operation of sucking, by the yarn catching device , the end of the yarn (Y) with a first suction pressure after the air is being injected from the second nozzles and thereafter continuing a sucked state of the end of the yarn (Y) with a second suction pressure that is different from the first suction pressure; wherein the first suction pressure is lower than the second suction pressure in the yarn catching device. an air-jet spinning device adapted to form a yarn (Y) by an action of a swirling air current; wherein the air-jet spinning device includes a nozzle block and a hollow guide shaft ; a passageway and plural second nozzles being arranged in the hollow guide shaft ; the passageway being adapted to guide the yarn (Y) to the outside and the second nozzles being adapted to allow passage of air that is injected into the passageway ; a yarn catching device adapted to catch an end of the yarn (Y) from the air-jet spinning device by suction; wherein the spinning machine further comprises a controller (10; C) adapted to control, during a period when the yarn catching device catches the end of the yarn (Y), at least one of the air-jet spinning device and the yarn catching device so as to execute at least one operation out of a first operation performed by the air-jet spinning device and a second operation performed by the yarn catching device , wherein the first operation is an operation of changing an air pressure in the air-jet spinning device from a first air pressure to a second air pressure that is different from the first air pressure at a time when the end of the yarn (Y) is guided to the outside when the air is injected from the second nozzles of the air-jet spinning device , wherein the second air pressure is lower than the first air pressure and the air-jet spinning device is configured to guide the yarn with the second air pressure at the time when the yarn catching device starts to suck the yarn end and the second operation is an operation of sucking, by the yarn catching device , the end of the yarn (Y) with a first suction pressure after the air is being injected from the second nozzles and thereafter continuing a sucked state of the end of the yarn (Y) with a second suction pressure that is different from the first suction pressure; wherein the first suction pressure is lower than the second suction pressure in the yarn catching device. <EOS>