Continuous fiber reinforced composites have long been favored in fields such as aerospace and automotive industry due to their advantages of lightweight

high strength

and high design freedom. To achieve rapid

personalized

and complex structural manufacturing of continuous fiber reinforced thermoplastic composites

and break through the limitations of traditional manufacturing methods

the use of 3D printing technology to prepare continuous fiber composite materials is considered an effective approach and has received widespread attention and research. Therefore

the basic principles

method classification

and research progress of 3D printing technology for continuous fiber reinforced composite were elaborated

and the development was reviewed from the aspects of forming materials

forming processes

forming properties

and forming mechanisms. Prospects for 3D printing of hybrid continuous fiber reinforced composite

multidegree-of-freedom 3D printing and their path planning research were proposed.