Abstract:To explore the ameliorative effect of freeze-dried hawthorn fruit added with dietary fibre （9 ∶ 1） on functional constipation. Mice were divided into 5 groups as follows：blank control，model control，and hawthorn fruit with 10 % dietary fiber，1，2，4 g/（kg·d）low dose，middle dose and high dose groups. Functional constipation model was established after oral administration for 10 d. The intestinal motion rate，defecation time，feces weight of all the mice and water content were investigated. The motional rate of ink in the intestine was enhanced by hawthorn fruit with 10 % dietary fiber administration，initial defecation time was abridged，and total feces weight increased when compared to the model control group. The administration of 1 g/（kg·d） of hawthorn fruit with 10 % dietary fiber has significantly defecation-promoting effect for constipation mice，which is beneficial for relieving functional constipation.