A　sensor　data　acquisition　system　is　an　essential　part　of　an　industrial　automation　control　system.　However,　the　variety　of　sensor　producer　causes　the　difficulty　of　protocol＇s　unity.　The　mechanism　which　requires　the　acquisition　boards　to　be　powered　off　when　the　number　or　types　or　manufacturer　of　sensors　is　changed　is　unreasonable.　Meanwhile,　traditional　sensor　reading　cycle　depends　more　on　the　embedded　program　skills.　In　this　paper,　to　solve　these　problems,　a　new　method　is　proposed　to　design　a　reconfigurable　data　acquisition　system　for　industrial　sensors,　in　which　field-programmable　gate　array　(FPGA)　is　adopted　as　the　core　controller.　We　use　both　dynamic　system　reconfiguration　and　static　system　reconfiguration　in　our　design.　Performance　of　the　proposed　system　is　verified　in　practical　application　of　an　automated　production　system　of　poly　carboxylic　acid　water　reducing　agent.