To provide a valve spring retainer made of titanium, capable of reduction in raw material cost and processing cost, a valve spring retainer is formed out of a titanium alloy raw material composed of 0.8 wt %≦Fe≦1.2 wt %, 0.24 wt %≦O≦0.32 wt %, 0.02 wt %≦N≦0.05 wt %, and balance Ti containing unavoidable impurities through cold forging.