Ferrite magnetic material and manufacturing method thereof

The invention discloses a ferrite magnetic material and a manufacturing method thereof. In the ferrite magnetic material, a composition shown by a combined formula of A1-xLax(Fe12-yCoy)zO1+18Z is used as a main component; in the formula, A is at least one element selected from Sr, Ba and Ca; x is 0.001-0.039; y is 0.01-0.2; and z is 0.80-0.89. According to the invention, by adding strontium carbonate and trace La element into a ball milling process, solid solubility of Co element in the ferrite can be improved, the magnetic performance of the ferrite can be greatly improved, and the production cost is low; and through the material and the method, permanent magnetic ferrite with Br greater than or equal to 4,100 G and Hcj greater than or equal to 4,000 Oe can be obtained.