The invention relates to a rhinestone arrangement and vacuum forming method. The method comprises the following steps that a tool disc is mounted on a mold sucking plate, a distribution plate moves to match with the tool disc, rhinestones are poured on the distribution plate, and the tool disc vibrates to fully fill embedded holes of the tool disc with the rhinestones; after the embedded holes of the tool disc are filled with the rhinestones, and no redundant rhinestone is remained on the disc surface of the tool disc, the tool disc and the distribution plate are recovered from an inclined state to a horizontal state, and then the distribution plate is separated from the tool disc; a plastic material is put between a pressing frame plate and the mold sucking plate, so that the plastic material is positioned above the tool disc with the rhinestones; the pressing frame plate descends and is matched with the mold sucking plate to clamp the plastic material, the plastic material is heated through a heater for softening to mold a rhinestone plastic disc through vacuum forming; and the heating is stopped, the pressing frame plate and the mold sucking plate synchronously ascend to drive the rhinestone plastic disc to rise, and the rhinestone plastic disc is taken out. The method is capable of realizing integrated operation of rhinestone distribution and vacuum forming, and improving the working efficiency.