Xiaomi was founded on April 6, 2010, in order to thank the Mi fans for their support and companionship along the way. In order to thank the Mi fans all the way to Xiaomi's support and companionship, to give back all the way to the support of the fans, every year in this day will be held in the fans of the grand carnival, for the appreciation of the Mi fans of the activities, so the day named Mi Fan Day.

Mi Fan Day is a corporate holiday set by Xiaomi for the avid fans of its products, scheduled for April 6 (Xiaomi's founding day) every year.

The festival is a thank-you event to thank Mi fans for their support and companionship along the way, and to give back to the fans who have supported the company along the way by organizing a grand bash for the fans.