The theoretical study shows that the two frequency components of a polychromatic light can interact each other in photorefractive polymers, and the bright-bright, dark-dark and bright-dark polychromatic spatial soliton solutions for optical wave evolution equations are presented under some steady-state conditions. A bright soliton can be formed in the photorefractive polymers with positive refractive index perturbation supported by a proper dark soliton, and a dark soliton can be formed in the photorefractive polymers with negative refractive index perturbation supported by a proper bright soliton.