The invention discloses a high-density culture technology for oocystis borgei and a collection method for oocystis borgei cells, and relates to the field of cultivation of marine microalgae, and the traditional culture medium for oocystis borgei is slow in growth rate and low in output. According to the invention, NaNO3 and
urea are used as
nitrogen sources, proper amount of NaHCO3 is added and 920
plant growth substance, human
urine, sea mud extract liquid,
cow dung and sheep
manure lixivium and soil extract are supplemented, and the
nutrition is rather balanced and comprehensive; a domestic used alkaline
mineral water bucket culture method replaces the traditional open
cement pool culture method, the operation is simple, the possibility of
pollution is low, control is easy, and the method is safe and reliable, production is available at all seasons, the cost is low, the growth is quick, the method is particularly suitable for the
plant expanding phase, the yield is improved by 180%; the yellow mud method for the collection of oocystis borgei replaces the original
centrifugation method, the
cell recovery rate is high, the method is simple and feasible, costs little, causes no damage to cells, is suitable for large-scale production and high in economic benefit, the equipment is simple and materials are easily obtained.