In order to study the two-photon separate holographic soliton pairs, based on the two-wave coupling and two-photon photorefractive effect in photorefractive crystals, holographic bright (dark) screening solitons are predicted in a series circuit consisting of double two-photon photorefractive crystal connected electronically by electrode in a chain with a voltage source. Each crystal can support a holographic screening soliton. The two solitons are known as a separate holographic two-photon screening soliton pair and there are three types: dark-dark, bright-bright and bright-dark. Numerical calculation results show that two solitons in a soliton pair can affect each other by light-induced current and coupling effects, which can affect the normalized spatial and the dynamical evolutions of solitons under the limit of the spatial extent of the optical beam is much less than the width of the crystal.