An object of the present invention is to provide a plant transformation method that is convenient and is widely applicable to various types of plant cells and nucleic acids. The present invention relates to a method for transforming a target plant, comprising the steps of:a) contacting a carrier peptide comprising a cell-penetrating sequence and a polycation sequence with a nucleic acid to form a complex; b) contacting the obtained complex with a cell of a meristem of the target plant to transfer the nucleic acid to the genome; c) allowing the meristem to grow; and d) selecting a plant harboring the transferred nucleic acid.