To analyze the properties of bright screening spatial soliton in photorefractive crystals under DC field,the propagation equation is gotten and calculated with split-step Furier method.When the two soliton waves are incidented into the photorefractive crystal and the distance between them is changed,the evolutionary rule of the bright soliton and soliton pairs is gotten.Both first-order and second-order bright soliton can transmit stably in the photorefractive crystals.When the incidented waves are changed ...