In this paper, the class of -ary hypermodules is introduced and several properties and examples are found. -ary hypermodules are a generalization of hypermodules. On the other hand, we can consider -ary hypermodules as a good generalization of -ary modules. We define the fundamental relation on the -ary hypermodules as the smallest equivalence relation such that is an -ary module, and then some related properties are investigated.