The invention relates to an image playing system and an image playing method. The image playing system includes a projection device. The projection device includes a storage circuit, a processor, and a projection module. The storage circuit stores a playing content including at least one multimedia content, a play time length and a play order corresponding to each multimedia content. The processor obtains the playing content from the storage circuit in response to receiving the power signal. The projection module is controlled by the processor and sequentially projects the multimedia content according to the play time length and play order corresponding to each multimedia content.