In a society with political risks,the governance of social risks cannot do without political decision. Tradi-tionally,the bureaucratic political structure excluded the public from the risky decision-making, showed over reliance on technopolis,and deprived the risk decision of the democratic supervision,which is very likely to fall into "the trap of taci-tus". Therefore,in social risk management,it is imperative to develop participatory deliberative democracy and well balance of risk decision-making power between statesmen,experts and the public on the one hand,while on the other hand,it is es-...