A distribution network lead stress standard exceeding method for distinguishing unequal height hanging points is disclosed. In the invention, through measuring a horizontal distance between a high hanging point and a lowest point of a lead and a horizontal distance between a low hanging point and the lowest point of the lead, a specific value of the two is calculated; and through a size of the specific value, a distribution network lead stress size of the unequal height hanging points is determined so as to determine whether a maximum stress of the lead exceeds a standard. The method comprises the following steps of (a) according to a ''lead stress sag table'', calculating a lead curve equation under an equal height condition; (b) through the lead curve equation, calculating a tangential slope of a lead hanging point; (c) through the tangential slope of the hanging point, calculating a hanging point lead stress size; (d) under an unequal height condition, carrying out an operation that a high hanging point stress takes a maximum stress under a hanging-point equal height condition and under same span length and weather conditions and calculating a lead curve function; and (e) taking specific values of horizontal distances between high and low hanging points and the lowest point as an index used for evaluating whether the lead satisfies a regulation.