The invention discloses tableted candies rich in fucoidin and an application of the tableted candies rich in fucoidin, and relates to the technical field of foods. The tableted candies comprise the following raw materials in parts by weight of 0.1-30 parts of fucoidin, 0.1-5 parts of chitosan oligosaccharide, 5-10 parts of sodium alginate, 30-60 parts of materia medica stomach nourishing powder, 5-30 parts of sorbitol, 1-10 parts of microlite cellulose, and 0.5-1 part of magnesium stearate, wherein the materia medica stomach nourishing powder is a composition of any one or more of hedgehog mushroom powder, ginger powder, poria cocos powder, dried orange peel powder, broccoli powder, haw powder and Chinese jujube powder, and the specification of the obtained tableted candies is 0.2g / tablet-2.0g / tablet. The fucoidin, the chitosan oligosaccharide, the sodium alginate and the materia medica stomach nourishing powder are used as main raw materials, and are medicinal and edible or common food raw materials, so that the tableted candies are leisure foods which can effectively eliminate helicobacter pylori in oral cavity and stomach, invigorate the spleen and nourish the stomach, and can prevent side effects on human bodies caused by antibiotics for conventional medication.