The invention discloses a rotary mobile phone support, and belongs to the field of mobile phone parts. The support comprises a pedestal and clamping body rotationally connected with the pedestal via arotary adjustment mechanism, wherein the rotary adjustment mechanism is positioned at the axis of the clamping body and the pedestal; the rotary adjustment mechanism comprises a T-shaped rotation block, an adjustment nut and a bearing; a T-shaped groove matched with the T-shaped rotation block is arranged in the clamping body; the T-shaped rotation block is installed in the T-shaped groove; a bearing is installed between the clamping body and the Y-shaped rotation block; the pedestal is fixedly connected with the T-shaped rotation block via the adjustment nut; one side of the bottom of the pedestal is of an arc-shaped structure, and the height adjustment mechanism is arranged on the other side. The rotary mobile phone support provided by the invention is convenient and quick to use, convenient to operate and strong in practicability; meanwhile the rotary mobile phone support also has the characteristics of firm structure, strong flexibility and strong stability.