An intelligent infusion system and an infusion method using an intelligent infusion system are disclosed. The system includes: a positioning device configured to determine a coordinate origin; an imaging device configured to capture a first image of an object in a first state and a second image of the object in a second state; a processing device configured to compare the first image and the second image to determine one or more objects to be processed and image data of each object to be processed; a calculation device configured to select a target object, select a first position on the target object, and determine coordinates of the first position based on the coordinate origin; and a control device configured to control a robotic arm to reach a liquid input region, and control the robotic arm to move a infusion needle to the coordinates of the first position for liquid infusion.