A foldable trolley having a trolley frame, the trolley frame comprising: a front left strut assembly, a front right strut assembly, a rear left strut assembly, and a rear right strut assembly, each of which assemblies is provided with a top connector and a bottom connector (1114 or 1114') movable axially relative to each other; a front end folding assembly configured to be coupled respectively to the top connectors and the bottom connectors of the front left strut assembly and the front right strut assembly and to be foldable in a widthwise direction of the trolley frame; a rear end folding assembly configured to be coupled respectively to the top connectors and the bottom connectors of the rear left strut assembly and the rear right strut assembly and to be foldable in the widthwise direction of the trolley frame; a left side folding assembly configured to be coupled respectively to the top connectors and the bottom connectors (1114 or 1114') of the front left strut assembly and the rear left strut assembly and to be foldable in a lengthwise direction of the trolley frame; a right side folding assembly configured to be coupled respectively to the top connectors and the bottom connectors (1114 or 1114') of the front right strut assembly and the rear right strut assembly and to be foldable in the lengthwise direction of the trolley frame; and a chassis assembly configured to be coupled respectively to the bottom connectors (1114 or 1114') of the front left strut assembly, the rear left strut assembly, the front right strut assembly and the rear right strut assembly and respectively to the left side folding assembly and the right side folding assembly, and configured to be foldable both in the widthwise and lengthwise directions of the trolley frame, characterized in that each of the front left strut assembly, the rear left strut assembly, front right strut assembly and the rear right strut assembly comprises a telescopic rod assembly configured to include an interior rod and a hollow exterior rod in which the interior rod is axially slidable, the respective top connector is secured on an upper end of the interior rod and the respective bottom connector (1114 or 1114') is secured on a lower end of the exterior rod, and wherein in the process that the foldable trolley is being folded for storage, the bottom connectors (1114 or 1114') are axially immovable relative to the respective strut assemblies. a front left strut assembly, a front right strut assembly, a rear left strut assembly, and a rear right strut assembly, each of which assemblies is provided with a top connector and a bottom connector (1114 or 1114') movable axially relative to each other; a front end folding assembly configured to be coupled respectively to the top connectors and the bottom connectors of the front left strut assembly and the front right strut assembly and to be foldable in a widthwise direction of the trolley frame; a rear end folding assembly configured to be coupled respectively to the top connectors and the bottom connectors of the rear left strut assembly and the rear right strut assembly and to be foldable in the widthwise direction of the trolley frame; a left side folding assembly configured to be coupled respectively to the top connectors and the bottom connectors (1114 or 1114') of the front left strut assembly and the rear left strut assembly and to be foldable in a lengthwise direction of the trolley frame; a right side folding assembly configured to be coupled respectively to the top connectors and the bottom connectors (1114 or 1114') of the front right strut assembly and the rear right strut assembly and to be foldable in the lengthwise direction of the trolley frame; and a chassis assembly configured to be coupled respectively to the bottom connectors (1114 or 1114') of the front left strut assembly, the rear left strut assembly, the front right strut assembly and the rear right strut assembly and respectively to the left side folding assembly and the right side folding assembly, and configured to be foldable both in the widthwise and lengthwise directions of the trolley frame, characterized in that each of the front left strut assembly, the rear left strut assembly, front right strut assembly and the rear right strut assembly comprises a telescopic rod assembly configured to include an interior rod and a hollow exterior rod in which the interior rod is axially slidable, the respective top connector is secured on an upper end of the interior rod and the respective bottom connector (1114 or 1114') is secured on a lower end of the exterior rod, and wherein in the process that the foldable trolley is being folded for storage, the bottom connectors (1114 or 1114') are axially immovable relative to the respective strut assemblies.