In this paper, we , rst study fuzzy subgroups and fuzzy multigroups of a group G and we obtain some chains of fuzzy subgroups of a fuzzy subgroup and by these sequences, we construct fuzzy multi-groups. We show that there is a relationship between a fuzzy multigroup with underlying group G and a fuzzy multigroup with underlying group Aut(A). Moreover, we generate a code by using the de, ned special fuzzy multigroup automorphisms.