Terahertz (THz) technology is gaining lots of attention for its unique applications in nondestructive testing, communications, spectral analysis and sensing. However, the traditional THz waveplate has a large size and high loss. As a two-dimensional planar material composed of artificially designed subwavelength periodic meta-atoms, the metasurface can flexibly adjust the amplitude, phase and polarization of electromagnetic waves within the subwavelength thickness, providing a platform for the design of ultra-compact and high-performance THz waveplate. In this paper, the THz polarization waveplate based on natural materials, dielectric gratings and metasurface are reviewed respectively. In particular, the THz polarization waveplate based on metasurface is mainly focused, including different resonant structures, switchable and continuously tuned, etc. Finally, the development of these terahertz polarization waveplate is summarized.