The present invention provides an oral care composition comprising, based on the total weight of the composition: (a) 15 to 24 weight % calcium carbonate (b) 0.9 to 2.5 weight % cellulose ether thickening agent (c) 7 to 10 weight % thickening silica and (d) at least 40 weight % water.本發明提供一種口腔護理組成物,包含,以該組成物的總重量為基準:(a)15至24重量%碳酸鈣;(b)0.9至2.5重量%纖維素醚稠化劑;(c)7至10重量%稠化二氧化矽;及(d)至少40重量%水。