The patent refers to the field of 'treatment of fibres, threads, yarns, fabrics, feathers, or fibrous goods made from such materials'. The invention discloses a nanometer antibiosis cashmere knit fabric which has a moderate price, slippery handfeel and soft gloss and can remove peculiar smell and inhibit the growing of bacteria. The nanometer antibiosis cashmere knit fabric comprises 0.0005 to 0.0025 weight percent of nano silver, 0.01 to 0.1 weight percent of ginkgo leaf extract, and the balance of cashmere, wherein the main antibacterial ingredients of the ginkgo leaf extract comprise ginkgo biloba terpene lactones, ginkgo flavones, and ginkgoic acid. The invention also discloses a production method of the nanometer antibiosis cashmere knit fabric. The method comprises the following steps of: preparing a ginkgo leaf extract/ nano silver composite antibacterial agent; treating the cashmere knit fabric with the ginkgo leaf extract/ nano silver composite antibacterial agent; and then performing conventional process flow of dehydration, soaking in an adhesive, performing dehydration, rolling and washing in a soft way, drying, and ironing to obtain a finished product. The treated cashmere knit fabric has excellent and lasting antibacterial performance, can effectively inhibit the growing of bacteria when clothes are worn, also can remove peculiar smell and reduce worm damage, does not have toxicity or stimulation to skin, and is safe and clean and protects heath.