In a method for producing a multilayer ceramic substrate by a non-shrinkage process, even when a total area of surface electrodes on a first principal surface side is smaller than that on a second principal surface side, a favorable balance in terms of a time period from softening to crystallization of glass is achieved between the first principal surface side and the second principal surface side, thereby allowing all base material layers to be densified and prevented from causing cracks or warpage, even when the crystallization temperature is lowered to prevent production of a reaction layer. The crystallization temperature of a glass material included in a second base material layer defining a second principal surface with a larger total area of surface electrodes is less than that of a glass material included in a first base material layer defining a first principal surface.