Objective To analyze and study the coating properties of porous artificial joints, including coating morphology and coating mechanical properties, and to summarize the range of coating properties of the current mainstream products, so as to provide a reference for the design and development of new products, and at the same time, to provide a basis for control for the analysis of implant removal in the long term. Methods The surface morphology, shear strength, and tensile strength samples of the coatings used in the experiment were respectively prepared in accordance with ASTM F1854, ASTM F1044, and ASTM F1147. The coatings were processed using plasma spraying technology. In accordance with the test method of ASTM F1854, the surface morphology (coating thickness, porosity and pore intercept) of the coatings of all 17 products (No. 1~17) were tested; for products No. 1~7 and No. 15 and 16, the shear strength test between the coating and the substrate was conducted firstly in accordance with the test method of ASTM F1044; and then in accordance with the test method of ASTM F1147, the shear strength test between the coating and the substrate was conducted. Then, according to ASTM F1147, conduct the tensile strength test between the coating and the substrate. For product number 17, the shear tensile strength of the composite coating and the shear tensile strength of the simple titanium coating were tested according to the test methods of ASTM F1044 and ASTM F1147, respectively. RESULTS A total of 15 products (88.2% of the total) had coating thicknesses between 300 ~500μm; there were 16 metal-coated products (No. 1~16), of which 11 (68.75% of the total) had coating porosities between 30% and 50%, and 14 (87.5% of the total) had coating pore intercepts between 50μm and 150μm; the mechanical properties of the coatings were related to the The mechanical properties of the coatings were independent of the matrix material; the shear and tensile strengths of the composite coatings with the addition of HA were significantly lower compared with those of the pure metal coatings. Conclusion For the design and manufacture of artificial joints with porous coating, the performance of the coating can refer to the following indexes: the coating thickness is 300~500μm; the coating porosity is 30%~50%; the coating pore intercept is 50~150μm; the substrate material can be selected according to the use of the product; the effect of the lower bonding force on the performance of the product should be taken into account when designing prostheses with composite coatings containing HA. This range of performance metrics can provide a control for the analysis of distant clinical extracts.