A drawer slide assembly comprising: a frame including a pair of connecting portions and a pair of guide portions connected to the pair connecting portions respectively; a drawer slidably engaged with and disposed between the pair of guide portions, wherein the drawer defines a receptacle and includes a catch located on a bottom side thereof and outside of the receptacle; and a first elastic member having a first end secured to one of the pair of guide portions, being inserted through and held by the catch, and having a second end secured to the other of the pair of guide portions; wherein the drawer is movable to a closed position and an open position and is under tension of the first elastic member; and wherein the tension of first elastic member increases as the drawer moves from the closed position to the open position; and wherein the drawer is sustained by a positioning device, and wherein the positioning device includes at least one stop member (42, 43) fixed to the frame for obstructing a movement of the drawer and an actuator pivotally connected to the drawer and operably pivotal to position for selectively engaging with the at least one stop member, thereby stopping the movement of the drawer; and wherein the at least one stop member includes at least one second stop member fixed to one of the pair of guide portions, wherein the drawer is sustained in the open position and is prevented from being closed when the actuator is engaged with the at least one second stop member, and wherein the drawer is able to be closed when the actuator is disengaged from the at least one second stop member. a frame including a pair of connecting portions and a pair of guide portions connected to the pair connecting portions respectively; a drawer slidably engaged with and disposed between the pair of guide portions, wherein the drawer defines a receptacle and includes a catch located on a bottom side thereof and outside of the receptacle; and a first elastic member having a first end secured to one of the pair of guide portions, being inserted through and held by the catch, and having a second end secured to the other of the pair of guide portions; wherein the drawer is movable to a closed position and an open position and is under tension of the first elastic member; and wherein the tension of first elastic member increases as the drawer moves from the closed position to the open position; and wherein the drawer is sustained by a positioning device, and wherein the positioning device includes at least one stop member (42, 43) fixed to the frame for obstructing a movement of the drawer and an actuator pivotally connected to the drawer and operably pivotal to position for selectively engaging with the at least one stop member, thereby stopping the movement of the drawer; and wherein the at least one stop member includes at least one second stop member fixed to one of the pair of guide portions, wherein the drawer is sustained in the open position and is prevented from being closed when the actuator is engaged with the at least one second stop member, and wherein the drawer is able to be closed when the actuator is disengaged from the at least one second stop member.