The invention discloses an 
infrared and visible light fusion tracking-based ship water cannon 
control system and method. The 
system comprises a photoelectric 
tracking system, a control computer and awater cannon 
servo control system, wherein the photoelectric 
tracking system comprises an 
infrared and visible light camera and a 
laser range finder that are used for obtaining binary channel image information and distance information of offshore ship objects, the control computer comprises an 
object detection and identification module and a firing data calculation module, the 
object detection andidentification module is used for using 
object color characteristics of a visible light image and 
object contour characteristics of an 
infrared image to detect and identify the objects, the firing data calculation module is used for subjecting the offshore ship objects to object modeling operation, a hitting equation is solved, firing data is calculated, and the water cannon 
servo control systemis used for controlling water cannons to point to the objects according to the firing data. The ship water cannon 
control system and method can be used for tracking real time motion of the offshore ship objects and can be prevented from 
electromagnetic interference, accurate angular position and distance information of the objects can be obtained, and the water cannons can be guided to perform effective shooting operation.