The invention discloses an SVC (static var compensator) compensation strategy optimizing method. The method mainly includes the following steps: calculating voltage weak nodes in a fault state based on risk measurement; calculating voltage weak nodes in a normal state based on static stability margin; determining optimal SVC distribution points and optimizing and configuring an SVC capacity algorithm. By the SVC compensation strategy optimizing method, defects like low reliability, low optimization accuracy and poor applicability in the prior art can be overcome to realize the advantages of high reliability, high optimization accuracy and good applicability.