Accurate　assessment　of　electricity　demand　price　elasticity　holds　paramount　significance　for　analyzing　user　price　responsiveness　and　implementing　price-based　demand　response.　This　paper　adopts　a　perspective　focused　on　the　retail　electricity　market　and　introduces　a　methodology　for　assessing　electricity　demand　price　elasticity　through　the　stackelberg　game　between　electricity　retail　company　and　consumers.　Firstly,　considering　the　conflicting　interests　and　disparate　decision-making　positions　of　electricity　retail　company　and　consumers,　a　stackelberg　game　model　is　formulated　with　the　goal　of　maximizing　the　utility　of　both　parties.　Secondly,　an　iterative　interaction　process　is　employed　to　compute　the　time-of-use　pricing　strategies　for　electricity　retail　company　and　the　electricity　consumption　behavior　strategies　for　consumers.　During　each　iteration　of　the　game,　the　electricity　demand　price　elasticity　of　consumers　is　updated.　The　process　continues　until　a　Nash　equilibrium　is　reached,　ultimately　enabling　the　assessment　of　consumers＇　electricity　demand　price　elasticity.　Finally,　the　proposed　model　and　methodology　are　validated　through　numerical　examples　to　demonstrate　their　rationality　and　effectiveness.