Task allocation problem is one of the import researches of multi-agent system.For the complex problem

many researchers from different points of view put forward a variety of effective algorithms.These algorithms are effective for the determinative environment

but for the uncertain and dynamic environment are deficient.In this paper

fuzzy characteristics of dynamic task environment are researched

using dynamic fuzzy set theory

given the relevant multi-Agent dynamic task allocation algorithm.Examples of the test show that the algorithm model can be a reasonable simulation of MAS system operation task allocation process

and have achieved the optimal task allocation strategy and a good effect.