A method and system relate to an odor absorbing paint and a preparation method thereof. Some embodiments of the disclosure provide a method for making an odor absorbing paint by binding activated carbon particles to tourmaline particles with acrylic emulsion as an adhesive. In other embodiments, the tourmaline particle component in the odor absorbing paint can release negative ions for a long time. These released negative ions can form neutral coordination compounds with indoor toxic and harmful gas particles. In further embodiments, the coconut shell activated carbon particle component can adsorb the neutral coordination compounds, so that the toxic and harmful gas particles will remain in tubular micropores inside the activated carbon, and will not be desorbed to leave.
