The invention discloses a method for producing a silk cotton quilt. A preparing method includes the steps that a silk raw material is added into hydrogen peroxide and soaked, silk is shifted into a sodium carbonate solution and heated to be at the temperature of 80 DEG C to 90 DEG C, scouring is carried out for 30 minutes to 50 minutes, then 3-chlorine-2-hydroxypropyltrimethyl ammonium chloride is added into an ultrasonic apparatus for ultrasonic treatment, silk after being subjected to ultrasonic treatment is washed to be neutral, then the silk is put into tourmaline sol liquid, subjected to coating treatment for 20 minutes to 30 minutes and dried, the silk is prepared into a quilt core in an opening-cotton-carding mode, an air-conveying-villus-filling mode, a cotton-carding-net-laying mode and a non-gel-shaping mode, a quilt cover is coated, and the silk cotton quilt is obtained. The antibacterial performance of the silk cotton quilt prepared with the method can be remarkably enhanced.