This paper investigates multi‐granulation interval‐valued decision rough sets in the frameworks of interval‐valued fuzzy probabilistic approximation spaces . In addition , the mean , optimistic and pessimistic multi‐granulation interval‐valued decision rough sets based on interval‐valued fuzzy probability measures are discusseds respectively . T he results and examples illustrate the practicability and generality of the models .%在区间值模糊概率近似空间中，提出了基于IV F （区间值模糊）概率测度的多粒度IV （区间值）决策粗糙集模型，分别讨论和刻划了平均、乐观和悲观三种情形，结果和算例验证了模型的实用性和广泛性。
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