A composite regeneration membrane is utilized for separating an alveolar bone tissue and a gum epithelium tissue. The composite regeneration membrane comprises a collagen resorbable layer and a titanium bendable layer. The collagen resorbable layer is utilized for transmitting material between the alveolar bone tissue and the gum epithelium tissue. The titanium bendable layer is located in the collagen resorbable layer for supporting the collagen resorbable layer. The titanium bendable layer also has a plurality of transmitting holes allowing the material transmitted by the collagen resorbable layer to pass through.