NOVELTY - An aqueous dope comprises component A and a component B mixed and stirred uniformly; component A comprising film forming resin of hydroxylated acrylic dispersion body and hydroxy polyurethane dispersion body, and component B comprising water dispersible aliphatic isocyanate as firming agent; the mass ratio of hydroxy polyurethane dispersion body in film forming resin of component A to hydroxylated acrylic dispersion body at 2-20:100 (preferably 3-15:100).    USE - Aqueous dope used in a blade of wind driven generator or priming paint and finishing paint of shell dope, finishing paint of high grade terrace dope, finishing agent of high-grade woodware, or finishing paint of preservative dope for metal and concrete structure (claimed).    ADVANTAGE - The dope is marvelous in attaching capability to wind blade, excellent in resistance, and prolongs service life of the wind power equipment.    DETAILED DESCRIPTION - An aqueous dope comprises component A and a component B mixed and stirred uniformly; component A comprising film forming resin of hydroxylated acrylic dispersion body and hydroxy polyurethane dispersion body, and component B comprising water dispersible aliphatic isocyanate as firming agent; the mass ratio of hydroxy polyurethane dispersion body in film forming resin of component A to hydroxylated acrylic dispersion body at 2-20:100 (preferably 3-15:100); and equivalent ratio of cyanate (NCO) group of firming agent of component B to hydroxy (OH) group of film forming resin in component A at NCO/OH of 1.5-2:1 (preferably 1.5-1.7:1). INDEPENDENT CLAIMS are included for:    (1) a preparation of the dope comprising orderly adding wetting agent, dispersant, and 2/3 defoamer to deionized water, stirring in water uniformly, adding pigment/filler batch by batch, grinding and dispersing until fineness of slurry at less than 10 mu m, orderly adding film forming resin, ultraviolet absorber, and defoamer to stir at high speed until resin and slurry mixed uniformly, adding thickener to adjust viscosity; diluting water dispersible aliphatic isocyanate to 70-90% using propylene glycol methyl ether acetate (PMA) or water; and uniformly stirring products, coating, and activating mixture at room temperature for 30 minutes-1 hour; and    (2) coating with high durability and high resistance to ultraviolet ray, formed by covering dope to base material and firming, with attaching force of firming coating and base material of not less than 7 MPa, abrasion of less than 8 mg (1 kg/500 r, CS-10), and resistance to ultraviolet ray can reach one stage every 2000 hours.