As an important laser application in industrial production， laser material removal has many advantages， such as no contact， high efficiency， and high processing accuracy. Herein， two aspects of the single-laser-beam removal material and laser hybrid reduction technology were elaborated. Further， four laser processing technologies of laser drilling， laser cutting， laser ablation， and laser lithography were introduced， and these technologies were compared with other processing technologies. The laser composite technology supplemented by the laser removal of materials and multiple energy fields is also introduced. Aiming at the problem of difficulty in efficiently processing grooves using single-laser-beam removal material technology， an electromagnetic-field-assisted laser groove processing method was introduced.