The invention discloses a healthy microwave oven. An automatic time-delay circuit is added in the known microwave oven circuit, and the automatic time-delay circuit is connected with the original microwave control circuit. When a microwave oven is powered on, the automatic time-delay circuit automatically delays a period of time and then the microwave control circuit is powered on, and after the microwave oven automatically delays a period of time and a user leaves the microwave oven, microwave is produced, thus the user can be protected and can not be hurt by close range microwave intense radiation and the close range intense microwave radiation and accumulated damage to the user when the known microwave oven is started can be avoided. By applying the healthy microwave oven disclosed by the invention, various microwave ovens in the prior art can be improved, and the user can be far from the damage of the close range intense microwave radiation.