The present invention relates to a dental adhesive primer composition for use in dental fields employed to bond dental materials, such as restoration materials, dental crown materials, prosthetic materials, esthetic materials, orthodontic materials, preventive materials, core build-up materials and root canal materials, to ceramics, metals, resins, composite resins, glass ionomer cements, and hard biotissues (enamel or dentin of natural tooth). The present invention also relates to a dental adhesive primer composition including a dental adhesive composition which can be used not only in combination with another adhesive composition but also alone.