The present invention relates to a cold-rolled steel sheet which is used for components of electronic products, frames, and the like and, more particularly, to a cold-rolled steel sheet having good press formability, a galvanized steel sheet using the same, and a method for manufacturing the cold-rolled steel sheet and the galvanized steel sheet. To achieve the purpose of the present invention, the present invention ensures intended strength and ductility by optimizing the composition of alloy elements and manufacturing conditions, and thereby can provide a steel material which is free of surface defects and has good formability.