The 0.6Ba(Zn$_{1}$3/Ta$_{2/3}$) $O_3$-0.4Ba( $Co_{1}$3/Nb$_{2/3}$) $O_3$ ceramics were prepared by the conventional miked oxide method. The structure properties of the 0.6BZT-0.4BCN ceramics with the sintering temperature were investigated by XRD, SEM. The 0.6BZT-0.4BCN ceramics had a complex-perovskite structure. Increasing the sintering temperature in the range of 140$0^{circ}C$ to 1475$^{circ}C$, the peak intensity of the superstructure reflection plane were increased, and also the grain size and ordering were increased. However the densities and microwave dielectric properties of the 0.6BZT-0.4BCN ceramics were increased up to 14$25^{circ}C$ and then decreased. It could be explained that the pore increased due to the vaporization of ZnO. The 0.6BZT-0.4BCN ceramics sintered at 14$25^{circ}C$ for 5 hours showed good microwave dielectric properties with $varepsilon$$_{r}$=29.7,=29.7,