We investigated the Drell-Yan process of the light neutralino pair
(i, j = 1, 2) productions at hadron colliders. We studied the dependence of the coupling properties of two light neutralinos
on, three SUSY Lagrangian parameters M
1, M
2 and μ, and find that the production rate of
pair will be dominated by the Higgsino-like couplings under the conditions p << M
2 and μ~M
1.