Angelica sinensis planting method based on crop rotation sequence

The invention relates to an angelica sinensis planting method based on a crop rotation sequence. The angelica sinensis planting method comprises the following steps: sowing broccoli from April 20th to May 10th in the first year; after broccoli is harvested on August 5th, broccoli rotten vegetable leaves are immediately returned to the field; sowing marigold and cannabis sativa in a mixed mode before August 15; from October 10th to October 20th in the first year, smashing the marigold and the cannabis as green manure, and turning and returning the green manure to the field; transplanting codonopsis pilosula seedlings from April 1st to April 15th in the second year; the codonopsis pilosula is harvested from September 20th to October 10th in the second year; transplanting angelica sinensis seedlings from April 1st to April 20th in the third year; the angelica sinensis is harvested from October 20th to November 10th in the third year; and repeating the steps. The crop rotation period is shortened, broccoli planti