The traditional methods for synthesizing Z-olefins generally require the use of high-energy reagents.These methods are usually controlled by kinetics.The reaction conditions are harsh and low atom economic.During the process of separation, Z-olefins are easy to convert to the thermodynamically more stable E-olefins.With the continuous development of organic photochemistry and photocatalysis technology, more and more synthetic challenges have been solved by photocatalysis.Herein, various types of visible light-promoted photocatalytic isomerization of olefins are reviewed.