This　paper　proposes　a　multi-frequency　current　tracking　control　method　which　can　be　applied　in　the　application　of　APF(Active　Power　Filter),　programmable　current　source　etc.　Because　the　method　based　on　the　stationary　PI　inner　loop　and　the　dq　outer　loop　can＇t　be　used　in　the　case　of　high　frequency,　a　new　method　is　proposed.　The　proposed　method　includes　a　stationary　PI　inner　loop　and　an　Amplitude-Phase　outer　loop,　which　can　realize　separate　control　of　each　harmonic　in　each　phase　precisely　in　a　wide　frequency　range,　and　keep　the　advantages　of　the　stationary　PI　method:　the　anti-interference　ability,　low　harmonic　distortion　in　the　line　current,　fast　response　speed　and　simple　control.　The　parameter　design　method　of　both　loops　is　also　described.　At　last,　simulation　results　based　on　PSCAD/EMTDC　and　experimental　results　are　given　to　prove　the　feasibility　of　this　method.　©　2011　IEEE.