Miniature Ping (mPing) is a prominent member in Touristlike superfamily of Miniature InvertedRepeat Transposable Elements (MITEs). It is the first active MITEs identified in the rice genome and one of the few MITEs which keep low copy numbers and maintain mobilization under natural condition. Therefore, it is an irreplaceable material for the study related to transposon. This paper comprehensively demonstrates research progress of mPing through analyzing its structure, transposase donor, activation characteristics, and its influence on genome, looking forward to lay foundation on advanced research of transposition mechanism of MITEs and the further development and utilization of mPing.