We study the reaction e^-+ e^+ (p_2 )→H^-+χ ̃_1^++χ ̃_1^o in MSSM model. The production total cross section is evaluated in specifics by numerical integration over the kinematically allowed range. Three values for the parameter tan⁡β (5, 15, 35) have been used to study the production process with proposal mass parameter M (150, 300 GeV). It is found that the dominant production can reach about 10−4 pb in the allowed range of parameters. The maximum cross section achieved reaches the value 1.6853 × 10−5 pb for tanβ = 5 and M2 = 300 GeV at a center of mass energy, E_CM = 880 GeV for the diagram no. 2 which proceeds through the photon propagator, γ. A maximum of 1.0836 × 10-4 pb was obtained for tanβ = 15 and M2 = 300 GeV at a center of mass energy, E_CM = 860 GeV for the diagram no. 28 which proceeds through the exchange of the scalar neutrino propagator, ν ̃_e.