Based on a completely distributive lattice
M
, we propose a new fuzzification approach to a module, which leads to the concept of an
M
-hazy module. Different from the traditional fuzzification approach that defines a fuzzy algebra as a fuzzy subset of a classical algebra, we introduce an
M
-hazy module by fuzzifications of algebraic operations. Then, we investigate the fundamental properties of
M
-hazy modules and
M
-hazy submodules. In particular, we present the
M
-hazy module homomorphism theorem.