Multiplex slide plate device and operation method thereof

A multiplex slide plate device and an operation method thereof are provided. The multiplex slide plate device includes a slide plate and a sacrificial layer. The slide plate has reaction vessels arranged in an array, wherein each of the reaction vessels has an opening portion and a bottom portion. The sacrificial layer has a microfluidic channel, wherein the microfluidic channel has an injection channel, a main channel and a distal channel connected to each other. The sacrificial layer is assembled to the slide plate, wherein the main channel faces the opening portion. A sample solution is injected into the injection channel, such that the sample solution flows from the injection channel through the main channel to the distal channel, wherein the sample solution loads into each of the reaction vessels while flowing through the main channel. The sample can be loaded into each reaction vessel of the slide plate quickly and uniformly through the multiplex slide plate device and the operation method of the invent