A new measurement platform testing electrode moving speed effect on discharge parameters was designed and manufactured following analysis of problems in references and pondering thought. The novel testing platform took advanced of structure of crank link motion gear and mechanotronics. The problem hence was resolved by the new design: that electrode need to move at high speed to the target but must avoid strong collision for protecting instrument from damage—which has perplexed researchers for long time. Theoretical analysis and algorithm on electrode moving speed effect were given based on two basic theorems in fluid mechanics. The platform was employed to verify primarily result from theoretical and algorithm analysis of electrode moving speed effect. Discussion was given, at the same time, on influence of discharge result caused by variation of gas pressure.