As the electronic communication industry rapidly advances, microwave dielectric ceramics become a hot topic in recent years. In general, the phosphate microwave dielectric ceramics have many advantages, such as low sintering temperature, low dielectric constant, easily prepared powder material, and no significant chemical reaction with sliver, so they could be taken as the low-temperature co-fired ceramics. In this paper, the author outlined the performance of microwave dielectric ceramics under the common structure models of the orthophosphate (PO4) and pyrophosphate (P2O7) series, and doping and recombination of PO4 ceramics. The prepared sample is the mixture of PO4 and P2O7 when the ratio of A-element and P-element molar ratio is greater than 1 in research. For the doping of PO4 ceramics, the A/B ions may be selected for replacement to improve the dielectric property. For the recombination of PO4 ceramics, the principle of performance improvement is as follows: if the temperature coefficient of original sample is the negative value, the composite TiO2 makes the temperature coefficient close to 0; if the value is positive, the materials with negative temperature coefficients are compounded to neutralize the temperature coefficient. Finally, the author proposed the problems existed in the phosphate microwave dielectric ceramics and looked forward to the prospect.