PROBLEM TO BE SOLVED: To prepare a transparent film with alga resistant properties preventing algae from adhering and breeding, and maintaining transparency even if being used in the open air for a long period. SOLUTION: This transparent film with alga resistant properties has a coating layer on a thermoplastic resin film or at least one side of the thermoplastic resin film, and contains a near infrared radiation absorbent and a far infrared radiation absorbent each as inorganic fine grain in the thermoplastic resin film or the coating layer. COPYRIGHT: (C)2005,JPO&NCIPI