The researchers prepared Ca permanent magnets by ceramics. Then they tested the products by the permanent ferrite meters and the vibrating sample magnetometer, etc. and observed the sample fracture surface by X-ray diffraction devices, EDS and SEM (scanning electron microscope).Finally, they analyzed the phase of the samples, magnetic properties and fracture morphology and also discussed the effects on the magnetic properties of the products concerning the microstructure, the main and auxiliary recipe and the orientation of the magnetic field. Experimental results show that the addition of Ba inhabits the grain growth and benefits the uniform grains of Ca ferrite and the orientation f. Hence the magnetic properties are significantly improved. The squareness ratio (Hk/HCJ) increases from 89% to 96%, and M* by 2.6%,reaching more than 6200. For Ca0.98-xLaxBa0.02Fe10.6-xCoxO19-δ，when 0.2% H3BO3 and 0.4% SiO2 ( x=0.3)are added into the grinding materials at1150kA/m, i.e. molded at 3 times HCJ magnetic field, it is more conducive to the parameter improvement of the Ca permanent magnets. The typical parameters of Ca permanent magnets are 452mT for Br and 402kA / m for HCJ.