The invention preparation method of an anti-aging and solvent-resistant pressure-sensitive adhesive and belongs to the technical field of pressure-sensitive adhesives. The method comprises steps as follows: firstly, fresh fig leaves are ground and crushed, after enzymolysis, a standby viscous concentrated solution is obtained through filtration, rotary evaporation and concentration, soybean meal subjected to mildewing treatment is degreased with ethyl acetate, subjected to ultrasonic extraction with ethanol, centrifugal separation, rotary evaporation and concentration and dried to constant weight with the standby viscous concentrated solution and fly ash, the mixture is molten and blended with styrene butadiene rubber and rosin, and the anti-aging and solvent-resistant pressure-sensitive adhesive is obtained after cooling and sizing. The crushed fig leaves are subjected to enzymolysis, the viscous ingredients in the leaves are released, the anti-aging performance of a soybean meal extract is used, the active ingredients in the fig leaves are combined, the anti-aging performance of the pressure-sensitive adhesive is further enhanced, the service life of the adhesive is prolonged, raw materials are environment-friendly and easy to obtain, and the adhesive has broader industrial production prospect.