NOVELTY - An adhesive tape comprises adhesive layer containing acryl-type polymer, and metal hydroxide having average particle diameter of 10 mu m or less, and/or hydration metallic compound having average particle diameter of 10 mu m or less, and has flame retardance of VTM-0 or VTM-1 measured by flame-retardant test based on UL94 specification. The total content of metal hydroxide and hydration metallic compound is 20-330 pts. wt. with respect to 100 pts. wt. of acryl-type polymer. The edge portion of adhesive tape has float distance of 0.5 mm or less based on bending test.    USE - Adhesive tape is used for fixation of battery exterior film (claimed). Uses include but are not limited to battery for mobile telephone, smart phone, portable terminal, digital camera, video movie, personal computer, and domestic electrical appliance.    ADVANTAGE - The adhesive tape has excellent flame retardance, adhesiveness and repellency-proof property.    DETAILED DESCRIPTION - An adhesive tape comprises adhesive layer containing acryl-type polymer, and metal hydroxide having average particle diameter of 10 mu m or less, and/or hydration metallic compound having average particle diameter of 10 mu m or less, and has flame retardance of VTM-0 or VTM-1 measured by flame-retardant test based on UL94 specification. The total content of metal hydroxide and hydration metallic compound is 20-330 pts. wt. with respect to 100 pts. wt. of acryl-type polymer. The edge portion of adhesive tape has float distance of 0.5 mm or less based on bending test carried out by providing adhesive layer surface of adhesive tape having length of 20 mm and width of 40 mm on surface (A) of polypropylene board having thickness of 2 mm, such length and width of affixing portion becomes 3 mm and 40mm, respectively, carrying out 1-reciprocation of 2 kg roller, bonding, folding the adhesive tape at 180 degrees , then carrying out 1-reciprocation of 2 kg roller on other surface (B) of polypropylene board, bonding remaining portion of the adhesive tape, maintaining at 23 degrees C atmosphere for 24 hours, leaving still at 70 degrees C atmosphere for 24 hours, and measuring distance (float distance of adhesive-tape edge portion) from adhesive-tape edge portion at which adhesive tape is floated and lifted from the surface (A) of the polypropylene board.