A drawer slide assembly, comprising: a first rail; a second rail movable with respect to the first rail; a drawer frame member connected to the second rail, the drawer frame member including a carrier and a drawer sidewall connected to the carrier; and a mounting device for mounting an inserting member of a furniture component, wherein the mounting device is connected to at least one of the drawer frame member and the second rail, the mounting device comprising: a base; an engaging member and a guiding member, wherein the engaging member is movable with respect to the base, the engaging member having an engaging portion; and wherein the guiding member is connected to the base and corresponds to the engaging member such that, when inserted into the guiding member, the inserting member displaces the engaging member to an engaged position, where the inserting member is engaged with the engaging portion and thus mounted to the mounting device, wherein the mounting device further comprises a transmission assembly and an elastic member, wherein the transmission assembly includes a first transmission member and a second transmission member, the first transmission member and the second transmission member are pivotally connected to the base and mesh with each other, the engaging member is connected to the first transmission member, and the elastic member is connected to the second transmission member, in order for the engaging member to be moved to the engaged position by an elastic force of the elastic member when the second transmission member is driven by the first transmission member, and a position-limiting member connected to the base, the second transmission member having a position-limiting portion, wherein the position-limiting portion is engaged with the position-limiting member when the second transmission member is rotated to a locked position characterized in that each of the drawer sidewall and the base has an opening (164, 158) corresponding to the second transmission member, the second transmission member has a tool hole corresponding to the position-limiting member, and a tool is able to pass sequentially through the openings (164, 158) and the tool hole in order to push the position-limiting member and thereby disengage the position-limiting member from the position-limiting portion, allowing the second transmission member to move from the locked position to an unlocked position. a first rail; a second rail movable with respect to the first rail; a drawer frame member connected to the second rail, the drawer frame member including a carrier and a drawer sidewall connected to the carrier; and a mounting device for mounting an inserting member of a furniture component, wherein the mounting device is connected to at least one of the drawer frame member and the second rail, the mounting device comprising: a base; an engaging member and a guiding member, wherein the engaging member is movable with respect to the base, the engaging member having an engaging portion; and wherein the guiding member is connected to the base and corresponds to the engaging member such that, when inserted into the guiding member, the inserting member displaces the engaging member to an engaged position, where the inserting member is engaged with the engaging portion and thus mounted to the mounting device, a base; an engaging member and a guiding member, wherein the engaging member is movable with respect to the base, the engaging member having an engaging portion; and wherein the guiding member is connected to the base and corresponds to the engaging member such that, when inserted into the guiding member, the inserting member displaces the engaging member to an engaged position, where the inserting member is engaged with the engaging portion and thus mounted to the mounting device, wherein the mounting device further comprises a transmission assembly and an elastic member, wherein the transmission assembly includes a first transmission member and a second transmission member, the first transmission member and the second transmission member are pivotally connected to the base and mesh with each other, the engaging member is connected to the first transmission member, and the elastic member is connected to the second transmission member, in order for the engaging member to be moved to the engaged position by an elastic force of the elastic member when the second transmission member is driven by the first transmission member, and a position-limiting member connected to the base, the second transmission member having a position-limiting portion, wherein the position-limiting portion is engaged with the position-limiting member when the second transmission member is rotated to a locked position characterized in that each of the drawer sidewall and the base has an opening (164, 158) corresponding to the second transmission member, the second transmission member has a tool hole corresponding to the position-limiting member, and a tool is able to pass sequentially through the openings (164, 158) and the tool hole in order to push the position-limiting member and thereby disengage the position-limiting member from the position-limiting portion, allowing the second transmission member to move from the locked position to an unlocked position.