Synbiotics composition capable of improving symptoms of chronic constipation as well as preparation method and application of synbiotics composition

The invention discloses a synbiotics composition, which is prepared from the following components in parts by weight: 0.5 to 1g of lactobacillus plantarum AHQ-14 freeze-dried powder, 0.5 to 1g of lactobacillus plantarum HM-22 freeze-dried powder, 0.1 to 1g of stachyose, 0.1 to 1g of fructo-oligosaccharide, 0.1 to 1g of galactooligosaccharide and 0.1 to 1g of isomalto-oligosaccharide. The preparation method comprises the following steps: S1, preparing freeze-dried powder from lactobacillus plantarum AHQ-14 and lactobacillus plantarum HM-22, and mixing to obtain probiotic powder; s2, stachyose, fructo-oligosaccharide, galactooligosaccharide and isomaltooligosaccharide are mixed and then sterilized, and prebiotics powder is obtained; and S3, mixing the probiotic powder and the prebiotic powder according to a ratio of (1-2.5): (1-1.5). The traditional Chinese medicine composition disclosed by the invention can be used for effectively relieving chronic constipation symptoms, remarkably improving intestinal perista