International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/356 2020 2020 Department of Mathematics and Statistics, The University of Lahore, Lahore, Pakistan Mohsin Khalid Department of Mathematics, Lahore Collage For Women University, Lahore, Pakistan Neha Andaleeb Khalid In this paper, we present the new kind of MN-subalgebra for neutrosophic cubic set which is called neutrosophic cubic MN-subalgebra where M represents the initial of author’s first name Mohsin and N represents the initial of second author’s first name Neha. We investigate this neutrosophic cubic MN-subalgebra on BF-algebra through some significant properties of BF-algebra. We also use R-intersection, p-intersection, p-union upper bound, lower bound and some important characteristics to study the behaviour of neutrosophic cubic MN-subalgebra [NCMNSU] on BF-algebra. 2020 2020 93 103 10.54216/IJNS.040203 https://www.americaspg.com/articleinfo/21/show/356