High entropy ceramic materials (HECs) normally refer to the multi-principal solid solutions formed by five or above ceramics. Recent years, HECs have attracted tremendous attention due to their surprising “high entropy effect” and fascinating properties. With the family of high entropy ceramics extending from (MgNiCoCuZn)O in rock salt structure to other oxides in fluorite structure, in perovskite structure, and in spinel structure, as well as diborides, carbide and silicide, a series of unique properties of high entropy ceramics related to mechanics, electronics and magnetics have been reported. In this paper, we review the recent development of high entropy ceramics, and summarize their structural characteristics, preparation methods, and various properties. In addition, the future trends and prospects of high entropy ceramics are proposed.