Whey protein-containing granules which make it possible to dissolve whey protein without forming an undissolved mass and make the thus obtained whey protein solution non-cloudy and clear, and a method of producing the same. The whey protein-containing granules contain a polyglycerol fatty acid ester having an HLB of 13 to 18 and comprising lauric acid as a constituting fatty acid. As the polyglycerol fatty acid ester, use can be made of, for example, monolauric acid decaglycerol ester or monolauric acid pentaglycerol ester.