An artificial spa generator comprises a clean water part, a spa generating part, and a first guide pipe connecting with the clean water part and the spa generating part. A dirt removing filter element, a softening filter element, and an active carbon filter element are provided in the clean water part respectively. The spa generating part is provided with spa medical stones therein. A flow meter is joined to the inlet pipe or the outlet pipe on the clean water part to count the quantity of water flowing into or out of the clean water part. The spa generating part joins a thermometer and a spa pipe. The clean water part at the outlet thereof joins a first guide pipe and a second guide pipe. The second guide pipe connects with an odor essence mixing part and the odor essence mixing part further comprises an odor essence storing section. A third control valve connects with the spa pipe and the second guide pipe. The second guide pipe joins a second control valve and connects with the spa pipe. The first guide pipe joins a flow meter and the clean water part joins a thermometer. The present invention can offer a purified spa and/or an odor essence water and can indicate the temperature of the spa and/or the temperature of the odor essence water. Furthermore, the accumulated water used can be indicated as a reference for replacing filter elements and the spa medical stones.