Abstract: The present application relates to a laser cutting head with a variable spot trajectory shape and a cutting process, belonging to the field of laser cutting processing. The technical solution is that a laser cutting head with a variable spot trajectory shape includes a beam shaper, a trajectory control assembly and a focusing assembly that are successively arranged in an optical path direction; the trajectory control assembly includes a reflecting lens, an X-axis galvanometer and a Y-axis galvanometer; a rotation axis of the X-axis galvanometer is a vertical axis; a rotation axis of the Y-axis galvanometer is a horizontal axis; a reflection surface of the reflecting lens is opposite to a reflection surface of the X-axis galvanometer, and a reflection surface of the Y-axis galvanometer is opposite to the reflection surface of the X-axis galvanometer.

Abstract: A laser cutting light spot control system. The system includes an upper computer (1) and a laser cutting light spot control apparatus (2), wherein the upper computer is in communication connection with a main processor (3), and the upper computer is used for acquiring a light spot track parameter inputted by an operator, and transmitting the inputted light spot track parameter to the main processor; and the main processor fits the inputted light spot track parameters by means of a graphics processing module (4), so as to form light spot track graphics data, i.e., a cutting coordinate set. A storage module (5) is used for storing the light spot track parameter inputted by the operator, and the cutting coordinate set. The present application further relates to a laser cutting light spot control method.