▎ 摘　　要

NOVELTY - Preparation of negative oxygen ion-releasing material involves mixing and blending 30-50 parts mass filler, 1-3 parts mass resin and 12-30 parts mass humidity-controlling material and grinding. The filler comprises 2-8 parts mass anion powder. USE - Preparation of negative oxygen ion-releasing material used in construction material for building (all claimed). ADVANTAGE - The prepared negative oxygen ion-releasing material has improved release efficiency of negative ions and can improve indoor air quality. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application method of the negative oxygen ion-releasing material in construction material, which involves mixing 43-83 parts mass negative oxygen ion-releasing material, 0.1-0.5 part mass defoamer, 0.21 parts mass silane and 40-50 parts mass deionized water to obtain building material, coating building material on inner wall of building and naturally drying.