The use of simple and easily available feedstock to quickly and efficiently obtain compounds with complex molecular structures through the transition-metal-catalyzed construction of C(sp3)-C bonds has important significance.As traditional C(sp3)-C coupling reagents,alkylmetallic reagents often have limitations such as air and moisture sensitivity and difficulties in storage.Nickel-catalyzed reductive olefin hydrocarbonation reactions use alkenes to replace organometallic reagents,reduce the synthesis steps,improve the functional group compatibility,and expand the substrate scope.This minireview discusses important progress in the hydroalkylation and hydroarylation of electronically unbiased alkenes in recent years and describes the key mechanism and applications.