Abstract: Dynamic mechanical analysis (DMA), provided with a variety of functions, is commonly used for measurement of the glass transition temperature or storage modulus (loss modulus) of polymer. However, there are numerous functions yet to be explored. This paper gives a brief introduction to the testing principle of DMA and makes a summary of the application of DMA in glass transition of polymer, mechanical property testing, measurement of secondary transition of vinyl ester, the compatibility of polymer blends, the effect of adhesive coating, the isothermal curing reaction kinetics of resin-curing agent system and investigation of shape memory materials. This paper aims to maximize the functional value of the instrument, thereby making corresponding contributions to the development of polymer materials.