This method for manufacturing an integrated lens barrel type lens uses a molten glass droplet molding method to form a molded glass body (50) integrally in a lens barrel (100) the material of which is formed from metal. An upper circular cylindrical shaped mold (23) is inserted into a through-opening part from a second cylindrical shaped opening part (102) and a molten glass droplet (50) is pressure molded by a lower circular cylindrical shaped mold (12) and the upper circular cylindrical shaped mold (23) such that the molten glass droplet (50) is pressed against a connection opening part (103).