The present invention provides an aquaculture net plated with brass and a manufacturing method thereof. The aquaculture net plated with brass is manufactured by: a net preparing step (A) of manufacturing a net with net yarn formed with one or more materials selected from polyester, polyethylene (PE), polypropylene (PP), etc.； a net preprocessing step (B) including a degreasing step of inserting the net into a processing bath and removing organic impurities attached to the surface of the net and an etching step for giving hydrophilicity to the net； a neutralizing step (C) of mixing the preprocessed net with 5 wt% of hydrochloric acid and 10 wt% of hydrogen peroxide (H_2O_2), processing the net at a temperature of 20-30°；C for 30-60 seconds, and then performing washing； a catalyzing step (D) of adsorbing palladium (Pd) particles, which are catalysts, onto the surface of the net； an activation step (E) of removing tin remaining on the surface of the net, and activating palladium to set palladium in a metallic state； a copper plating step (F) of performing electroless plating to attach copper to the net to form a coating layer； and a drying and heat treatment step (G) of processing an organic solderability preservative (OSP) solution after a dehydration step of removing surface water from the net, and inserting the net into a vacuum drier to dry the net by far-infrared light to finish the net. Therefore, the present invention enables a cost-efficient aquaculture net, which does not have sea creatures attached thereto for a service life of 8 months to 1 year in comparison to a conventional net, to be manufactured.COPYRIGHT KIPO 2020폴리에스터, 폴리에틸렌(PE), 폴리프로필렌(PP) 등에서 하나 이상 선택되는 재질로 형성되는 그물사로 그물망을 제조하는 그물망 준비단계(가)； 상기 그물망을 처리욕조에 넣고 그물망 표면에 부착된 유기불순물을 제거하는 탈지단계와 그물망에 친수성을 부여하기 위한 에칭단계를 포함하는 그물망 전처리 단계(나)； 상기 전처리된 그물망을 염산 5중량%와 과산화수소(H2O2) 10중량%를 혼합하고 20 내지 30℃온도로 30 내지 60초간 처리한 후 수세를 실시하는 중화단계(다)； 상기 그물망 표면에 촉매인 팔라듐입자(Pd)를 흡착시키는 촉매화단계(라)； 상기 그물망 표면에 잔존하는 주석을 제거하고 팔라듐을 활성화하
