Abstract: Aiming at the demand of large scale artificial society computational experiment, based on the ACP theory, the paper designs and realizes a large scale Agent based computational experiment platform KD-ACP which is characterized with high performance, extendable, customizable and open interactive. From user's point of view, the platform includes 5 function modules: artificial society, computational experiment, parallel control, computational environment management and repository management. Based on the brief illustration of the platform framework, on the background of emergency management computational experiment, the paper focuses on the argument of the application pattern design of KD-ACP platform: through assembling and configuration, generating the application system which supports computational experiment on dfferent kinds of emergency; extending new resources by applying computational experiment, and integrate them into platform to raise the ability of platform gradually. KD-ACP platform has implied in the research of "A-H1N1 in°uenza event", Urumchi "7.5" Riot, public opinion evolution on haze, biochemical event evacuation, and Ebola outbreaks.Through these applications, the platform can preliminarily support public opinion and epidemic computational experiment.