To provide a polyester knitted fabric not only exhibiting touch feeling which is characteristic to ultrafine fiber, but also not impairing stretchability which knitted fabric has originally and excellent in processability and handleability and to provide a method for producing the polyester knitted fabric and to provide a fiber product.

The polyester knitted fabric is composed of a core-sheath type conjugate yarn in which a polyester filament yarn A having a single fiber diameter of 10-1,000 nm is arranged in the sheath part and a polyester filament yarn B having a single fiber diameter of 1-20 m is arranged in the core part. The fiber product such as inner wear or sport wear is obtained by as necessary using the polyester knitted fabric.