Drawer and storage cabinet

A drawer, comprising:

• a drawer body defining a storage space, wherein the drawer body comprising a rear plate, a side plate, and a bottom plate, the rear plate and the side plate are adjacently arranged and connected along a circumference of the drawer body, a front wall of the rear plate is provided with an adjustment hole, a bottom of the side plate is provided with a support, and the bottom plate is held by and fixed to the support;
• a guide rail assembly configured to extend or retract along a push-pull direction of the drawer, wherein a top wall of the guide rail assembly is designed as a support surface on which the support is mounted, and the support is provided with an adjustment surface opposite and spaced apart from the support surface;
• and
• a drawer adjustment mechanism installed on a rear side of the front wall of the rear plate, wherein the drawer adjustment mechanism is connected to a rear end of the guide rail assembly, and the drawer adjustment mechanism comprises an adjustment portion that is inserted into the adjustment hole or is arranged opposite the adjustment hole;
• as the adjustment portion is actuated, the drawer adjustment mechanism drives the rear plate to move a rear end of the support toward or away from the support surface, thereby adjusting an angle between the support surface and the adjustment surface.