Abstract: Recent achievements in laser welding of transformation induced plasticity(TRIP)-assisted steel were systematically summarized.In the laser welding process of TRIP-assisted steel,the formation of porosities in the weld bead,solidifying procedure of fusion zone(FZ),microstructure and properties of FZ and heat affected zone(HAZ)were emphatically described.Laser welding tailored blanks of TRIP-assisted steel with dissimilar materials,and laser cutting,laser brazing,laser spot welding of TRIP-assisted steel were also introduced.Future directions in research of laser welding of TRIP-assisted steels were pointed out.