Transition metal-catalyzed hydrosilylation of alkene has become one of the most important and fundamental homogeneous catalytic reactions, however, such reactions still face the problems of massive consumption of precious metal catalysts in industrial applications. Iron-series metals are abundant in the Earth's crust, cheap, easy to obtain, and biocompatible. Compared with precious metals such as platinum, iron-series metals have many advantages as catalysts, but there are still large gaps in catalytic hydrosilylation of alkene and tertiary silanes, especially involving industrial applications of silicones, and cannot replace precious metal catalysts for large-scale industrial production at current stage. The development of new iron-series metal catalysts for the efficient and highly selective hydrosilylation reaction of alkene with tertiary silanes and the in-depth discovery of the regulations on activity and selectivity of the catalysts are of great research value and have become a hot research area with a series of important progresses. The research progress in the hydrosilylation of olefins and tertiary silanes catalyzed by iron-series metals is systematically reviewed, the challenges faced in this field are discussed and the future development direction of this field is also prospected. Only the reactions promoted by homogeneous catalysts are introduced.

Key words: iron-series metals, alkene hydrosilylation, tertiary silanes, silicones