The adjoint approach is usually used to study the crank-rocker linkages’ coupler curves and the geometry of rigid objects in spatial motion. In this paper, the adjoint approach between a spatial curve and a ruled surface based on the Bishop frame is presented. Also, a ruled surface by using the components of the Type-1 and Type-2 Bishop frames is expressed. Moreover, for a curve that adjoint to a ruled surface the fixed point conditions concerning the Bishop frame are determined. Finally, we presented four examples to show the relationship between the ruled surface and its adjoint curve.