The present invention aims to provide an oral film-form base and an oral film-form preparation which have a rapid dissolution profile in the mouth and sufficient film strength, give a good tactile impression when handled with fingers and favorable texture and taste in the mouth, and are administrable to those who have limitation in carbohydrate intake. The present invention relates to an oral film-form base including an edible polymer soluble in water and an organic solvent having a solubility parameter of 9.7 or higher, and particles of at least one compound selected from the group consisting of amino acid, dipeptide, and nucleotide, the particles of at least one compound selected from the group consisting of amino acid, dipeptide, and nucleotide being dispersed in the state of particles in the oral film-form base.