The invention discloses a correction method for wind tunnel continuous variable-attack-angle force measurement testing data. A correction amount comprises balance signal delay, model self-weight, balance supporting rod elastic corners and model inertia force and centrifugal force. Under the non-wind state, a model runs periodically according to a certain angle interval, in the running process, anattack angle and a balance signal are continuously collected according to a fixed sampling rate, cross-correlation functions of all components of a balance and the attack angle are calculated separately, and precise delay of all the components of the balance relative to the attack angle can be obtained according to peak values of the cross-correlation functions. After self-weight data and testingdata are subjected to digital filtering and delay correction, angle relations between the balance supporting rod elastic corners and all systems of axes are calculated and in combination with balancefiles, and an actual attack angle of the model can be obtained; the self-weight data and the testing data are subjected to interpolation separately at a certain attack angle interval, one kind of interpolation data is subtracted from the other kind of interpolation data, and accordingly correction of self-weight, inertia force and centrifugal force of the model can be conducted at the same time.