For impulsive stochastic differential systems，there may be two impulsive effects of control and disturbance at the same time，namely the type and strength of impulses change with time，the exponential stability of stochastic delay differential systems under timevarying impulsive conditions is proposed.Based on the comparison principle，the upper bounds and lower bounds of the average impulsive interval are obtained respectively to characterize the control impulses and the disturbance impulses，thus the sufficient conditions are derived for exponential stability of impulsive stochastic delay differential systems.