The invention discloses a method for packaging a mattress. The method comprises the following steps of: putting a spring mattress into a containing bag; wholly compressing the spring mattress along the height direction of the mattress; vacuumizing the containing bag, so that the containing bag and the mattress shrink to a sheet shape; rolling the sheet-shaped mattress into a drum shape by using equipment, and winding an adhesive tape at the same time so as to fix the drum and prevent unwinding; and putting the mattress which is rolled into the drum shape and fixed well into a packaging box for packaging. The method can prevent a packaging cardboard box from being damaged by stored energy of rolling so as to ensure the integrity of the packaging cardboard box and the reliability of transportation; and meanwhile, the packaged mattress does not need to be put into a packaging bag for fixing the shape of the mattress and can be directly put into the packaging box, so that expense for making the packaging bag is saved, and the mattress has better market competitiveness.