A series of (Ba/Sr/Ca)2.9Ce(PO₄)₃:0.1Eu²⁺ phosphors were synthesized by the high temperature solid state method,and the luminescence properties were investigated.Under the 400 nm radiation excitation,the emission peaks of Ba2.9-xSrxCe(PO₄)₃:0.1Eu²⁺, Ba2.9-yCayCe(PO₄)₃:0. 1Eu²⁺ and Sr2.9-zCazCe(PO₄)₃:0.1Eu²⁺ can shift from 515 nm to 540 nm, from 515 nm to 553 nm, and from 540 nm to 553 nm,the CIE chromaticity coordinates can change from (0.312,0.607) to (0.376,0.580),from (0.312,0.607) to (0.427,0.535),and from (0.376,0.580) to (0.427,0.535) with increasing x, y and z,respectively.Moreover,with increase the measuring temperature,the phosphor can remain the higher emission intensity,it means that this phosphor has the good thermal stability.The results have certain reference significance for obtaining the color adjustable phosphor for the white light emitting diodes.