Due to factors of engineering, geology, and adjacent well production, fracturing interference events occurred during the horizontal wells fracturing in the WY shale gas field. The gas production of impacted well has a significant decrease and is hard to restore. Fracturing interference has influenced the shale gas production greatly. Hence, through the analysis of field data in the WY area, dynamic analysis methods for fracturing interference have been established. The dominated dynamic controlling factors of fracturing interference are determined. The understanding of fracturing interference types has been deepened. And the impact of fracturing interference on the estimated ultimate recovery (EUR) of affected parent wells and fractured child well has been illustrated. The following results are obtained. First, fractures are more likely to propagate to low pressure area of adjacent wells, resulting in fracturing interference, and parent wells usually exhibit low pressure and low production characteristics. Second, the types of fracturing interference in WY can be divided into three types: fracturing interference through hydraulic fractures, fracturing interference through natural/secondary fractures and stress interference. Third, experiential reproduction methods are presented according to different facture interference types and production responses. Fourth, Fracture interference not only impacts EUR in impacted wells, but also limits the stimulation effect of the fractured wells. By deepening the understanding of the inter-well fracturing interference in WY, it can provide reference for the analysis and evaluation shale gas fracturing interference.