In this paper, the existing plasma jet detection methods are introduced firstly, and the non-contact detection method of PS-PVD jet that spectral diagnostic technique and its calculation method are emphatically reviewed. Secondly, based on the influence of H2 on the phase, microstructure phase and thermal conductivity of the coating, the research status of the influence of H2 process parameters on the microstructure of the coating at home and abroad is introduced, and the differences between mechanical properties and thermal protection properties of the coating are summarized and evaluated from the particle erosion resistance and the corrosion resistance of the coating to calcium magnesium aluminum silicate (CMAS). Finally, the possibility of combining mechanical properties with thermal protection properties of PS-PVD thermal barrier coatings in the future is prospected.