Abstract: In view of the short-term failure of emergency supply chain caused by emergencies and the mismatch between supply and demand of emergency public products, this paper analyzes the timeliness and time ductility of information under the disturbance of demand and supply, and constructs a government-led procurement decision-making model for emergency public products under delay control. In this paper, the whole-time decision problem is transformed into multiple sequential stage dynamic decision problems, and the decision variables of all decision subjects are regarded as a function of time for evolution analysis. Compare the supplier's utility in two cooperative and non-cooperative modes to determine the feasibility of the model. Through numerical simulation, the sensitivity of the optimal decision value and its related parameters are studied. The study shows that the cost of government emergency management is positively correlated with the value of time delay within a certain range, while the expected utility and flexible supply of emergency public goods suppliers are negatively correlated with the value of time delay. the actual demand for supplies and the procurement price of supplies in time delay control have different sensitivities in different time periods. The model can guide the government and related enterprises to make rational procurement and production decisions of emergency public goods after the disaster, so as to realize effective docking synergistic strategies.