To provide a stretchable knitted fabric having characteristic soft and slimy feeling of ultrafine fiber and excellent stretchability, a method for producing the knitted fabric and a textile product of the fabric.

The knitted fabric is composed of a combined filament yarn comprising a polyester filament yarn A having a single fiber diameter of 10-1,000 nm and a polyester filament yarn B having a single fiber diameter of 1-20 m and an elastic yarn. A textile product such as inner wear and sportswear is produced from the knitted fabric as necessary.