By comparing the initial orthogonal experiment found that: polyvinyl alcohol-embedded (PVA) method compared with sodium alginate CA) method is more suitable for wastewater treatment. Further cross-linking experiments under the conditions of the agent CaCl2 concentration is 4%,mall particle size is 3mm,PVA and sodium alginate mass premise ratio is 8:1,By PVA and sodium alginate mixture mass concentration as factor A,ttapulgite concentration mass concentration as factor B,activated sludge concentration asfactor as Caffecting factors,each select three levels,using L9 34) for orthogonal,by gel ball into a ball and biological activity to determine the best material ratio is A1B2C2 (8%,2.5%,10%). Experimental results how that attapulgite has the Modification to embedded polyvinyl alcohol (PVA).