To provide a multilayer ceramic capacitor that has a high capacity, a small dielectric loss, and 5μm or less dielectric layer.

When a composition expression according to a mol ratio of a metal element oxide is expressed by xPb(Mg1/3Nb2/3)O3.yPbTiO3, x and y in the above satisfy conditions 91≤x≤99, 1≤y≤9, and x+y=100. At the same time, when Pb element is expressed by A, and Mg, Nb and Ti are expressed by B, and the chemical expression of the above Perovskite type compound oxide is expressed by ABO3, the mol ratio of A/B satisfies 0.95≤A/B≤0.99 and an average crystal particle diameter ranges from 0.5 to 3μm.