An　acquisition　system　applying　in　transient　electromagnetic　method　(TEM)　receiver　has　been　designed　in　this　paper.　The　accuracy　of　acquisition　has　been　improved　by　using　a　floating-point　A/D　with　high　input　dynamic　range,　which　is　composed　of　programmable　gain　amplifiers　(PGA)　and　a　dual-channel　16　bit　resolution　ADC.　The　real-time　performance　can　be　ensured　by　using　a　field-programmable　gate　arrays　(FPGA)　as　the　main　control　unit　to　control　ADC,　PGA,　data　storage　and　communication　interface.　By　integrating　a　soft　core　CPU,　Nios　II,　in　FPGA,　the　complexity　of　circuit　design　was　decreased,　and　the　work　efficiency　of　system　was　improved.　This　system,　which　has　good　performance　of　real-time　and　high　integration　level,　can　meet　the　needs　of　TEM　signal　acquisition.　©　(2014)　Trans　Tech　Publications,　Switzerland.