Method for manufacturing polyamide-based water-treatment separator having excellent permeation flux characteristics and water-treatment separator manufactured by same

A method for manufacturing a water treatment separation membrane, the method comprising:

• forming an aqueous solution layer comprising an amine compound on a porous support;
• and
• bringing an organic solution comprising an acyl halide compound into contact with on the aqueous solution layer to form a polyamide active layer,
• wherein the organic solution comprises a non-polar solvent and an amphiphilic solvent having a boiling point of 120° C. or more,
• wherein the amphiphilic solvent comprises one or more selected from the group consisting of propylene glycol monomethyl ether acetate, dipropylene glycol monomethyl ether acetate, and 1,3-butanediol diacetate, and
• wherein the amphiphilic solvent is comprised in an amount of 0.05 vol % to 10 vol % based on a total volume of the organic solution.