An effective duration scheduling algorithm is very important in multifunction phased array radars (PAR) to optimize performance and improve resource utilization ratio. By using the time as the auction items, and the tasks to be scheduled as bidders, the action algorithmbased PAR scheduling scheme is designed. The algorithm combines the task scheduling principle of PAR, on the base of task priority principles and the principles of timeuse, to establish the auction value function of auctioneers’ profits. A desired time principle as the standard, the bidders bid desired function is established. The simulation results show when the PAR scheduling task is in saturation, the algorithm has a higher scheduling success rate, hit value rate and lower average time shifting rate, ensuring the highpriority task priority scheduling.