In this paper, Pb(Zr,Ti)O 3 –Pb(Zn 1/3 Nb 2/3 )O 3 –Pb(Sn 1/3 Nb 2/3 )O 3 –Pb(Mn 1/3 Sb 2/3 )O 3 (named briefly PZT–PZN–PSN–PMS) quinary system piezoelectric ceramics with various Zr/Ti ratio were prepared by traditional method. The properties of this quinary system piezoelectric ceramics were studied and the effect of Sr 2+ , Ba 2+ doping on dielectric constant εr3T and Curie temperature T c were investigated. What's more, the dielectric loss tanδ and dielectric constant εr3T under the strong alternating electric (AC) field were discussed. The partial substitution of Pb 2+ with Sr 2+ and Ba 2+ improves εr3T and decreases slightly T c . The tanδ and εr3T under strong AC fields sharply increase because of the movement and vibration of domain walls resulting from AC field. The good general results are as follows: Q m =1671, εr3T=1294, d 33 =285×10 −12 CN −1 , tanδ=0.004 (1V/mm field), K p =0.522, T c =295°C and the coercive electric field E c =19kVcm −1 . When AC field increases to 200 and 400V/mm, tanδ is equal to 0.013 and 0.041, respectively. The above results were obtained for the certain composition doping 2mol% Sr 2+ and 2mol% Ba 2+ .