To provide a green sheet prevented from producing void in lamination and keeping proper tensile strength and to provide a laminated ceramic electronic component less prone to cause interlaminar peeling or the like and keeping excellent lamination state.

The green sheet 1 contains inorganic powders 11, a binder 12 and a plurality of gaps, the porosity is ≥20% to ≤80% and the binder 12 contains a polymerizable compound 12a. The tensile strength of the green sheet 1 is improved by polymerizing the polymerizable compound 12 to produce a polymer 12b afterward .