The invention provides a preparing method of a color membrane substrate, the color membrane substrate and a display device and belongs to the technical field of display. The problem that an existing touch screen preparing technology is complex can be solved. The preparing method of the color membrane substrate comprises the steps that a pattern comprising a plurality of first electrode blocks, a plurality of second electrode blocks and connecting parts enabling every two adjacent first electrode blocks to be connected is formed on a base through the pattern composition technology; patterns of interlayer insulation layers are formed on the upper portions of the connecting parts through the pattern composition technology, and color filters with at least one color are formed at the same time, wherein the interlayer insulation layers and the color filters are arranged in a disconnected mode, and the second electrode blocks are exposed at the disconnection position; patterns including bridging parts enabling every two adjacent second electrode blocks to be bridged are formed through the pattern composition technology.