An electronic device , comprising: a housing assembly comprising a first housing , and a second housing connected to the first housing , wherein the first housing has a first supporting surface , the second housing has a second supporting surface , and the first supporting surface is flush with the second supporting surface ; a tension assembly connected to the housing assembly ; and a flexible screen module comprising a fixed end , and a free end opposite to the fixed end , wherein the fixed end is connected to the first housing and supported by the first supporting surface , the free end bypasses an end of the second housing facing away from the first housing and extends into the housing assembly , and the free end is connected to the tension assembly , wherein the first housing is movable relative to the second housing to enable at least a part of the flexible screen module to unfold on the second supporting surface or to retract into the housing assembly , wherein the tension assembly comprises an elastic member and a movable member ; the second housing , the free end , and the elastic member are connected to the movable member , and the elastic member is connected to the second housing , characterized in that , the free end has a first slideway defined therein; one end of the movable member is rotatably connected to the second housing , the movable member has a limit column provided on the other end thereof and disposed in and penetrating through the first slideway ; in the process of the flexible screen module unfolding from the housing assembly , the movable member is driven by the flexible screen module to swing relative to the second housing and enable the limit column to slide along the first slideway ; and in the process of the flexible screen module retracting into the housing assembly , the movable member is driven by the elastic member to swing and to restore. a housing assembly comprising a first housing , and a second housing connected to the first housing , wherein the first housing has a first supporting surface , the second housing has a second supporting surface , and the first supporting surface is flush with the second supporting surface ; a tension assembly connected to the housing assembly ; and a flexible screen module comprising a fixed end , and a free end opposite to the fixed end , wherein the fixed end is connected to the first housing and supported by the first supporting surface , the free end bypasses an end of the second housing facing away from the first housing and extends into the housing assembly , and the free end is connected to the tension assembly , wherein the first housing is movable relative to the second housing to enable at least a part of the flexible screen module to unfold on the second supporting surface or to retract into the housing assembly , wherein the tension assembly comprises an elastic member and a movable member ; the second housing , the free end , and the elastic member are connected to the movable member , and the elastic member is connected to the second housing , characterized in that , the free end has a first slideway defined therein; one end of the movable member is rotatably connected to the second housing , the movable member has a limit column provided on the other end thereof and disposed in and penetrating through the first slideway ; in the process of the flexible screen module unfolding from the housing assembly , the movable member is driven by the flexible screen module to swing relative to the second housing and enable the limit column to slide along the first slideway ; and in the process of the flexible screen module retracting into the housing assembly , the movable member is driven by the elastic member to swing and to restore. <EOS>