A multi-function trash picking device includes a foldable rod, a detachable head portion and a handle. The foldable rod includes two elongate rod arms which are connected through a pivot. The two rod arms are folded and unfolded through the pivot. One rod arm has one end connected to the head portion, and the other rod arm has one end connected to the handle. The handle includes a trigger thereon. The head portion includes a clamp and a metallic slide member adapted to open or close the clamp. Two sides of the clamp are respectively provided with two plastic rings adapted to fasten a trash bag. The multi-function trash picking device of the present invention can pick up the excrement of pets or trash easily. The user can hold the pet while picking up the excrement or trash, so that the pet won't be lost.
