The SMS Composite Nonwoven Production Line is the machine with two spunbond spinning systems and one meltblown spinning system. The first spunbond spinning system forms the first layer of web, and then the meltblown spinning system makes the second layer of web, and then the second spunbond spinning system forms the third layer of web. The three-layer web is bonded by the hot-rolling machine, and finally slitted and wound by a rolling machine to form an SMS composite non-woven fabric.