A conductive pattern reading device and method, and an interactive platform. The reading device comprises a sensing circuit board and a medium printed with conductive patterns. The medium is provided with one or more conductive sensing regions, wherein the conductive patterns are printed in corresponding conductive sensing regions. The sensing circuit board comprises one or more conductive sensing blocks corresponding to the conductive sensing regions and further comprises a sensing chip used for sensing and measuring capacitance values of the various conductive sensing blocks. The sensing chip is connected to the various conductive sensing blocks.