Bipolar-valued fuzzification of the notion of implicative hyper
$BCK$-ideals is considered. Using the concepts of positive and
negative lever sets, a characterization of a bipolar fuzzy
implicative hyper $BCK$-ideal is provided. A relation between
a bipolar fuzzy hyper $BCK$-ideal and a bipolar fuzzy
implicative hyper $BCK$-ideal is established. A condition for
a bipolar fuzzy hyper $BCK$-ideal to be a bipolar fuzzy
implicative hyper $BCK$-ideal is given. By using a collection
of implicative hyper $BCK$-ideals, a bipolar fuzzy
implicative hyper $BCK$-ideal is established.