This paper reviews recent research on the use of strontium phosphate in biomedical applications, particularly as a phosphate coating on implants in orthopedic and dental fields. The strontium phosphate layer is obtained by chemical conversion process, named phosphating. Conversion coatings with strontium phosphate (SrPO4) can provide significant corrosion resistance when used on magnesium and titanium alloys. Protective coatings are therefore a standard option, given their high protective efficiency on Mg alloys. In particular, chemical conversion coatings are feasible and cost-effective, offering satisfactory corrosion resistance while benefiting from ease of operation and relatively low costs. Metal-phosphate conversion coatings outperform similar conversion coating products due to their low-hazard environment, high cost-effectiveness, and outstanding performance protection. To obtain a phosphated layer with anticorrosive properties, a phosphating solution based on strontium phosphate must first be obtained. Surface preparation and optimization of the phosphating parameters take place. Since chemical conversion coatings with strontium phosphate on various substrates have rarely been investigated, further research is required.