The invention relates to a vacuum evaporation system. The vacuum evaporation system comprises a vacuum cavity chamber, evaporation sources, an electromagnetic coil and a tray. The tray is arranged on the bottom of the vacuum cavity chamber, the electromagnetic coil is arranged above the tray and opposite to the tray, the evaporation sources are multiple, the vacuum evaporation system further comprises a movable support, the multiple evaporation sources are arranged on the movable support, the movable support conveys the evaporation sources above the tray, the tray conveys the evaporation sources inside the electromagnetic coil to carry out evaporation through electromagnetic induction heating, and enables the evaporation sources to return to original positions after the evaporation is finished, and therefore the evaporation sources are arranged at the original positions on the support. The movable support moves to put the next evaporation source above the tray to carry out the next evaporation when the movable support puts the evaporation sources to the original position. The vacuum evaporation system replaces the evaporation sources through movement of the movable support, achieves continuous production, greatly simplifies the structure of a system, lowers energy consumption, improves production efficiency and controllability in a large range, and ensures product qualities.