Disclosed is a multi-functional mobile phone holder, including a placing portion and a supporting portion rotationally connected to the supporting portion, where the supporting portion includes a main supporting plate, a left supporting plate and a right supporting plate, the main supporting plate is provided with a first main inclined surface and a second main inclined surface, the left supporting plate is provided with a left inclined surface, and the right supporting plate is provided with a right inclined surface; and the left supporting plate rotates with an axis P