A laminated ceramic electronic component that includes a laminate having a plurality of dielectric layers and a plurality of internal electrode layers laminated together. External electrodes having underlying electrode layers and plating layers are formed on both end surfaces of the laminate. When a cross-section including the underlying electrode layers is observed, the underlying electrode layers contain a plurality of Cu crystals and glass, and an average value of lengths of demarcation lines of the Cu crystals having different crystal orientations is 3 μm or less.