NOVELTY - Method for preventing and/or treating production of holothurian sea cucumber aquaculture pond Cladophora through synergia of multiple living beings, involves culturing the sea cucumber in breeding pond in early May, adding water and fermented chicken manure, continuously feeding the mixture, adding fermented chicken to breeding pond comprising Chlorella, culturing the culture, culturing fingerlings, inoculating gulfweed seed in culture ponds, detecting transparency, adding essential microorganism to the cultivation pond, and observing transparency of the pond.    USE - The method is useful for preventing and/or treating production of holothurian sea cucumber aquaculture pond (claimed).    ADVANTAGE - The method controls illumination transmission degree controlled through increasing density of unicellular floating miniature algae, simultaneously reduces transmittance of light of pond water through gulfweed, controls growth of Cladophora, eliminates ingestion function of rock worms, and small amount of Cladophora growing at the pond, does not cause pollution to environment, does not injure aquaculture animals, and is environmentally-friendly.    DETAILED DESCRIPTION - Method for preventing and/or treating production of holothurian sea cucumber aquaculture pond Cladophora through synergia of multiple living beings, involves (a) culturing the sea cucumber in breeding pond in early May, adding water to increase water level to 50-70 cm, adding 50-100 kg/day fermented chicken manure to the water, continuously feeding the mixture for three days, stopping feeding for 15-20 days, detecting water transparency which is more than 50 cm, continuously adding 100 kg/mu chicken manure for one day, detecting transparency which is less than 30 cm and changing normal water, (b) adding fermented chicken in 200-1000 l/acre breeding pond comprising 10 million cells/ml Chlorella, (c) culturing the culture for 5-6 months and adding 1-3 million/acre rock worm fingerlings having size of 0.5-2 cm in pond, (d) culturing the fingerlings for 5-6 months, inoculating 150-250 kg/mu gulfweed seed in culture ponds, hanging the culture using mesh having diameter of 1-2 cm, lashing corners hanging support network floats and hanging the culture to depth of 20-80 cm, (e) culturing the culture for 5-6 months, detecting transparency for every 20 days if the transparency is greater than 40 cm then add 20-50 kg/acre fermented chicken for 1-2 times and detecting transparency until the transparency is reduced below 40 cm, (f) performing cultivation of early June to late June, adding 1 billion cells/ml essential microorganism to the cultivation pond and adding 10 parts per million water to the pond, (g) performing culturing for early July to late July for 8 hours for 2-3 times, adding pond water to make up the volume to 100-150 cm, detecting water transparency for every 10 days, if transparency is greater than 40 cm then adding 10-50 kg/acre fermented manure to pond, detecting water transparency for 3-5 days, when the transparency is 35 cm or less then the fermented chicken is not added and repeating the above-mentioned process, and (h) observing the culture for early September to late October, adding pond water to the above-mentioned culture to make up water level to 80-120 cm for 2-3 times, detecting water transparency for every 10 days, if transparency is greater than 50 cm, then add 10-50 kg fermented manure, and repeating the above-mentioned process until detecting water transparency to less than 40 cm.