Abstract: A device and a method for heating and curing artificial stone with microwave are provided. The device includes a microwave curing cavity, within which an incompletely cured artificial stone is placed, and microwave is used to heat the artificial stone to completely cure the artificial stone; wherein, a frequency of the microwave is in a range of 300˜1120 MHz. The present disclosure provides a separately designed microwave curing cavity, and utilizes 300˜1120 MHz microwave having a large penetrating depth, to realize a rapid curing of a large-sized artificial stone.