With　elevation　in　shunt　reactor＇s　capacity　and　voltage　level,　its　latent　faults　tend　to　increase.　In　this　paper,　the　characteristics　and　limitations　of　the　existing　measurement　techniques　for　insulation　level,　temperature　rise,　and　vibration　signal　are　analyzed.　And　the　coupling　relationship　of　the　vibration　signal　to　the　shunt　reactor＇s　insulation　level　and　temperature　rise　is　expounded　to　draw　a　conclusion　that　the　vibration　signal　can　reflect　various　faults　of　a　shunt　reactor.　Moreover,　key　technological　issue　for　latent　faults　detection　of　shunt　reactor　based　on　vibration　method　is　put　forward　to　be　solved.　Based　on　the　application　of　vibration　sensor　array　to　detecting　the　vibration　signal　of　a　large-scale　shunt　reactor,　the　effect　of　vibration　propagation　characteristics　on　fault　diagnosis　and　location　is　discussed.　It　is　concluded　that　the　fault　diagnosis　and　location　with　the　latent　fault　features　and　its　coupling　parameters　are　applicable　to　practical　engineering　for　condition-based　maintenance　of　shunt　reactors.　©,　2014,　Xi＇an　High　Voltage　Apparatus　Research　Institute.　All　right　reserved.