Steady-state bright (dark) spatial solitons are predicted for biased two-photon photovoltaic photorefractive media, which are due to two-photon photorefractive effect. When the photovoltaic effect is neglectable, these solitons are just like the two-photon screening solitons. If the applied field absent, these solitons degenerate to the two-photon photovoltaic solitons under the close-circuit condition. Screening solitons and photovoltaic solitons theories can be obtained by simplifying this theory under the appropriate conditions.