The purpose of the article is to study about spherical cubic sets and spherical cubic bi-ideals of Gamma near-ring R. We define spherical internal and external cubic sets and their properties. We discuss P-order and R-order, P-union, P-intersection, R-union and R-intersection of spherical cubic sets. We define spherical cubic bi-ideals of gamma near-ring R and prove that P-union, P-intersection, R-union and R-intersection of spherical cubic bi-ideals of Gamma near-ring R are also spherical cubic bi-ideals of Gamma near-ring R.