Aiming　at　the　problems　of　tedious　testing　content　and　low　detection　efficiency　of　arc　fault　detection　device　(AFDD),　a　series　fault　arc　waveform　generating　device　is　designed　in　this　paper.　Based　on　the　typical　waveform　database　established　by　the　test　platform,　a　signal　isolation　module　with　linear　analog　optical　coupler　as　the　core　and　a　power　amplifier　module　with　high-power　switch　tube　as　the　energy-consuming　component　are　designed.　The　fault　arc　waveform　in　the　database　is　restored　by　the　upper　computer　platform　to　verify　the　action　characteristics　of　AFDD.　To　simulate　signal　isolation　circuit　and　power　amplifier　circuit,　the　co-simulation　environment　was　built　by　LabVIEW　and　Multisim.　Through　the　test　verification,　the　device　realizes　the　generation　of　series　fault　arc　waveform.　©　2019　IEEE.