Multifunctional folding trolley

A multifunctional folding trolley, comprising a bearing part, a push-pull part, a caster part, and an unfolded positioning apparatus for limiting and positioning the push-pull part in an unfolded state, wherein the bearing part comprises a bearing frame and a bearing plate which are connected with each other, the push-pull part comprises a push-pull handle holder and a push-pull handle, the push-pull handle holder is pivotally connected to the bearing part by a pivot shaft and is provided with sliding channels, supporting rods of the push-pull handle are inserted in the sliding channels and are capable of sliding relative to the push-pull handle holder, the push-pull handle holder is provided with a first locking mechanism capable of locking and stopping the push-pull handle from sliding relative to the push-pull handle holder, the push-pull handle holder is disposed such that the push-pull handle is capable of being switched between a first position horizontal relative to the bearing part and a second position upright relative to the bearing part when the push-pull handle holder rotates relative to the bearing part, and the supporting rods is capable of sliding along the sliding channels until reaching a space where the bearing part is lower than a top surface of the bearing plate when the push-pull handle is located on the first position horizontal relative to the bearing part.