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This paper reports on the fabrication and evauation of a conductive polymer dot array as a patterned medium for scanning multiprobe data storage system based on the technology of scanning probe microscopy (SPM). The dot array was formed by electron beam lithography and selective electrolytic polymerization from self-assembled monolayer on Au surface. The conductance of the conductive polymer dots was electrochemically changed by the application of voltages with a conductive SPM tip. It is demonstrated that conductive polymer possesses the potential ability for the patterned media of scanning probe data storage systems.