PROBLEM TO BE SOLVED: To provide a nasal moisture-retentive material capable of preventing drying of the nasal cavity while eliminating breathlessness.SOLUTION: A nasal moisture-retentive material 1 comprises a body part 10 and a moisture retention part 12. The body part 10 is fixed into the nasal cavity by bringing its outer peripheral part into intimate contact with the nasal cavity. The moisture retention part 12 is a member having a moisture retention function. The body part 10 has a hole part 14. The hole part 14 communicates the inside and outside of the nasal cavity with each other.