The present invention relates to the plastic caviar bead for filling of pillow having function of anti-bacteria that combines the raw materials of synthetic resins of 100 in weight, antimicrobial of 0.5.about.2 in weight, ceramic with hydrogen silicon and hydrogen aluminum of 3.about.15 in weight that are pressed and corrected to the shape of granulation with 1 5 mm in its diameter and having an excellent antibacterial function, it helps prevent all sorts of bacteria such as ticks to spread into the pillow while emitting atomic infrared rays that has a positive impact on human body and as well, its spherical shape increases the practicality of plastic caviar bead and enables a flow of air circulation by allowing the space between the beads and by emitting negative ion or atomic infrared rays, as well, the present invention of plastic caviar bead having a foam molding has an effect of light weight and superior comfort that the consumer want.