A heat dissipation fan includes a fan blade assembly. The fan blade assembly includes a plurality of fan blades and a plurality of silencers connected to the plurality of fan blades and evenly arranged along a rotation direction of the plurality of fan blades. A center of gravity of the plurality of silencers coincides with a rotation center of the heat dissipation fan. At least some fan blades of the plurality of fan blades have different contact surfaces with air.