In this paper, two related quotient structures are investigated utilizing the concept of coset. At first, a new HYPERVECTOR SPACE F/V = (F/V,\circ,\circledcirc,K) is created, which is composed of all cosets of a bipolar fuzzy soft set (F;A) over a HYPERVECTOR SPACE V . Then it will be shown that dim F/V = dim V/W, where the quotient HYPERVECTOR SPACE V/W includes all cosets of an especial subhyperSPACE W of V. Also, three bipolar fuzzy soft sets over the quotient HYPERVECTOR SPACE V/W are presented and in this way some new bipolar fuzzy soft HYPERVECTOR SPACEs are defined.