The invention relates to a Chinese medicinal ointment for treating constipation by dressing umbilicus, which can effectively solve the problem of treating constipation. The ointment is prepared from Chinese rhubarb, betel nut, semen pharbitidis, cinnabar, codonopsis pilosula, lanum, Vaseline and azone, wherein the Chinese rhubarb, the semen pharbitidis and the betel nut are subjected to reflux extraction with ethanol, and evaporated to obtain extract; the codonopsis pilosula is extracted by a decoction method; and the cinnabar is produced into super-fine powder by adopting an elutriation method, scarp iron is completely attracted by a magnet, the superfine powder is grinded with water to form a paste state, the cinnabar is dried, the steps are performed repeatedly to obtain the super-fine powder of cinnabar. The Chinese medicinal ointment is prepared by the steps of; putting the cinnabar super-fine powder in a mortar, sequentially adding the codonopsis pilosula, the Chinese rhubarb, the semen pharbitidis extract and the betel nut extract by using an equivalent incremental method, and grinding and uniformly mixing; adding the lanum and Vaseline which is heated and molten in a water bath, and grinding uniformly; and adding the azone, and uniformly grinding to obtain the ointment. The Chinese ointment has the advantages of good curative effect, high effective rate, low cost, convenient treatment, small side effect and safety, and provides innovative contribution to constipation treatment.