Disclosed is a trolley, including: a trolley body, comprising a first support plate, and a second support plate perpendicular to the first support plate and fixedly defined on the upper surface of the first support plate; a plurality of carrying platforms, being perpendicular to the second support plate and symmetrically defined on two sides of the second support plate, the carrying platforms located on the same side of the second support plate being arranged in a row and equally spaced, to allow one end of the display panel to abut against the carrying platform, and the other end abut against the second support plate, for the display panel to be placed obliquely. Disclosed are also an aging test apparatus and system.