Anti-reduction X7R type superfine ceramic material and preparation method thereof

The invention discloses an anti-reduction X7R type superfine ceramic material and a preparation method thereof, belongs to the technical field of electronic materials, and particularly relates to a ceramic material technology. According to the anti-reduction X7R type superfine ceramic material disclosed by the invention, a dielectric material is composed of BaTiO3 of which the particle size is 100-200nm as a main material and a secondary additive; the secondary additive comprises ZrO2, BaCO3, WO3, Mn3O4 and oxides of one or more of rare earth elements Y, Dy, Ho and Er; the mass ratio of the materials is [100-(a + b + c + d + e)] BaTiO3 + aBaCO3 + bZrO2 + cWO3 + dMn3O4 + eRe2O3, Re2O3 represents rare earth element oxides, a, b, c, d and e are coefficients, and by weight percentage, 0.4% < = a < = 4%, 0.1% < = b < = 0.4%, 0.02% < = c < = 0.08%, 0.2% < = d < = 0.8%, and 0.4% < = e < = 1.6%. And the mass of the secondary additive accounts for 1.32-5.68% of the total mass of the whole anti-reduction X7R type super