Antibacterial mildewproof bar

The invention discloses an antibacterial mildew proof rod which comprises the materials: 89-99% of thermoplastic plastics master batch, 1-5% of antibacterial mildew preventive, 0-1% of foaming agent, 0-5% of color master batch which are evenly mixed together to prepare the antibacterial mildew proof rod. As the manufactured plastic rod contains the antibacterial mildew preventive, the antibacterial mildew proof rod has the functions of being mildew proof and antibacterial, and can be cut to be various lengths according to the needs, so as to be applied to various environments which have seeper and need to prevent bacteria and mildew from growing, especially a defrosting tray of an air-condition and a humidifier water storage box.