The present invention provides an anti-bad breath toothpaste composition to contain phytoncide undiluted solution extracted from the leaves of chamaecyparis obtuse including 1~20% of phytoncide as antibacterial activity material of microorganism material within a mouse so as to remove bad breath. The toothpaste composition has natural substance as an alternative to antimicrobial due to the maleficence of the compound such as chlorohexidine and triclosan used as the existing toothpaste antimicrobial.COPYRIGHT KIPO 2015구강 내 구취의 제거 및 구강내 미생물의 항균활성 물질로 피톤치드를 1~20% 포함하는 치약조성물.