The invention discloses equipment used for reinforcing composite knitted non-woven fabric, and relates to the technical field of non-woven fabric equipment. The equipment comprises a supporting plate,a melting box, a high-pressure pushing mechanism, a spray head, a guide plate, a discharge roller, a first guide roller, a water storage tank, a hot pressure roller, a material receiving frame, a first cooling roller, a second cooling roller, a third cooling roller, a water pump, a first water conveying tube, a second water conveying tube and a third cavity. The equipment can perform three-time cooling treatment on semi-finished product cloth, gradually reduces a cooling temperature, can realize gradual type cooling treatment on the semi-finished product cloth, enables a knitted fabric layerto tightly paste to a non-woven fabric layer, is better in combination effect, directly conveys semi-finished products of non-woven fabric onto the knitted fabric, can effectively reduce production processes, saves working cost, and shortens processing time; and water flow inside a second cavity enters the third cavity, so that dual cooling treatment on the semi-finished product cloth can be realized, and therefore, semi-finished product cloth cooling is more uniform.