The invention relates to a testing device for detecting the pneumatic correlation of a pipeline suspension bridge in a turbulent wind field. The device comprises a plurality of pipeline bridge section models which are connected in sequence and a fixed bracket, wherein each pipeline bridge section model is divided into an upper model part and a lower model part along the axis of each model; the fixed bracket comprises a cross beam and stand columns positioned at two ends of the cross beam, the top end of each stand column is connected with the cross beam, and the bottom end of each stand column is fixed on the ground; the cross beam penetrates through the insides of the plurality of pipeline bridge section models which are connected in sequence; and force balances and leveling spacers are sequentially and respectively arranged between the cross beam and walls of the lower parts of two of the models, and fixed spacers and leveling spacers are sequentially and respectively arranged between the cross beam and walls of the lower parts of the rest models. According to the device, the cross beam is arranged in the pipelines of the pipeline bridge section models, so that influence of the fixed bracket for the streaming characteristics of the pipeline suspension bridge can be avoided, and the simulation precision of the pipeline suspension bridge for the pneumatic correlation in a wind field can be greatly improved.