The invention discloses a novel medicinal preparation, namely, a colloidal bismuth pectin tablet. After the invention patent medicine, namely, the colloidal bismuth pectin capsule (colloidal bismuth pectin) is used for a long term, the result shows that the medicinal preparation has the water-absorbing effect for hollow gelatin pills, so that the capsules are crispy and broken, crack, and leak powder, meanwhile, the disintegration time is long, the dissolving out is slow, the dissolution rate is low, the stability is poor, the validity period is short, and the medication habits of the vast people can not be adapted. With the colloidal bismuth pectin tablet provided by the invention, the blank of the colloidal pectin tablet is filled up, the safety and effectiveness of the capsule for the gastrointestinal diseases are reserved, the abovementioned numerous deficiencies of the capsule are made up, compared with the capsule, the colloidal bismuth pectin tablet provided by the invention has the advantages that the disintegration time is short, the dissolving out is rapid, the dissolution rate is high, the stability is good, the validity period is long, the intended population is wide, and the colloidal bismuth pectin tablet has the effects of protecting the mucosa and eradicating helicobacter pylori, and belongs to the safe and effective novel medicinal preparation of the colloidal bismuth pectin for treating gastrointestinal diseases.