The present invention discloses a stereolithography rapid prototyping apparatus and method thereof. The stereolithography rapid prototyping apparatus comprises a container for receiving a photo-reactive resin in fluid state, an imaging means for displaying two-dimensional digital images and a light source for causing said photo-reactive resin in fluid state to undergo polymerization. Said container and said light source are disposed at the different sides of said imaging means respectively. According to embodiments of the present invention, the light path are formed only by the light source and the imaging means, the position relationship are simple, the light path is simple, there is no time delay, the curing effect can be improved accordingly.
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