Method for assembling wire harness, interference suppressing member, and wire harness assembly structure

The purpose of the present invention is to provide a technique whereby it is possible to suppress an increase in the number of components constituting a wire harness arranged on the periphery of an instrument panel reinforcement and an increase in the complexity of assembling the wire harness. The method for assembling a wire harness according to the present invention is provided with (a) a step for attaching an interference suppressing member to at least a portion of a long reinforcement arranged so as to extend in the width direction of a vehicle on the back of the instrument panel of the vehicle, and (b) a step for arranging a wire harness so as to face the reinforcement across the interference suppressing member after the (a) step. 目的是提供种能抑制构成在仪表板用加强件的周边配设的线束的部件个数的增多及组装操作的繁琐化的技术。线束的组装方法具备：工序(a)，在长条状的加强件的至少部分安装干扰抑制构件，该加强件以在车辆的宽度方向延伸的方式配设于车辆的仪表板的里侧；以及工序(b)，在所述工序(a)后，以夹着所述干扰抑制构件与所述加强件相对的方式配设线束。