The invention discloses a heat supply network heat storage characteristic-based electric-thermal system joint economic dispatching method. The method comprises the following steps of: establishing a dispatching target function by considering wind electricity access risk cost and taking minimum wind curtailment as a main target under the premise of carrying out heat supply network heat storage characteristic-based wind electricity-included electric-thermal system combined economic dispatching to satisfy a heat supply demand; determining a system constraint condition, a thermal-electric unit constraint condition, a straight condensing unit constraint condition and a heat supply network state constraint of the dispatching target function; calculating a heat supply amount and a wind electricity output of a system at the current stage; judging whether wind curtailment is generated due to limited wind electricity access ability of the system; if the judging result is positive, carrying out regulation and control by obeying a principle of wind power-first net play and adopting a dispatching strategy of carrying out thermal-electric unit continuous regulation to decrease heat supply streamextraction capacity of the unit; and if the judging result is negative, carrying out regulation and control according to a dispatching strategy of calculating wind curtailment possibility according to wind power outputs at the last time period and the current time period.