The invention discloses a pickling method of helianthus tuberosus. The pickling method comprises the following steps of adding water to siraitia grosvenorii and lotus leaves, and performing boiling so as to obtain a soup base; then putting fresh helianthus tuberosus into the soup base, soaking the fresh helianthus tuberosus in the soup base, and performing draining; uniformly mixing the processed helianthus tuberosus with hot peppers, Chinese prickly ash and rose sirup, adding rice wine, and performing stirring so as to obtain a mixture; and leaving the mixture to stand, placing the mixture after standing into a clay jar which is dry and clean, spreading a layer of vegetable leaves on mixed materials, spreading and stuffing Pu'er tea between the vegetable leaves and an opening of the clay jar, and performing natural fermentation for several months so as to obtain finished products. The pickled helianthus tuberosus is delicious and unique in mouth feel, has special crispness, sweetness, hot taste and mellow fragrance of the Pu'er tea, and can stimulate appetite, promote gastric secretion, help digestion and remove heat to cool blood. All the raw materials are effectively matched, so that the pickled helianthus tuberosus is easier to be tasty and attractive in color and maintains certain crispness. Through detection, when the clay jar is opened and the pickled helianthus tuberosus is eaten, the pickled helianthus tuberosus does not contain nitrite, after the clay jar is opened, the guarantee period of the pickled helianthus tuberosus is as long as 1 year, besides, during the guaranteed period, the nitrite is not generated, and the pickled helianthus tuberosus is free from mildew, stable in flavor, unchanged in color and lasting in crispness.