The invention discloses a cultivating method for jazmin flowers, and relates to the technical field of cultivation. The method comprises the following steps that (1) soil preparation is conducted; (2)biogas slurry pouring is conducted, and a base fertilizer is applied, wherein after ditching is conducted, biogas slurry is poured at the ditch bottom layers firstly, the ditch bottom layers are covered with soil layers of 8-10 cm, 950-1250 kg of base fertilizer is applied per mu and covered with soil layers of 4-6 cm, biogas slurry is poured on the soil layers continuously and covered with soillayers of 2-3 cm finally, and 10-20 days after the preparation, jazmin flowers can be planted in the field; (3) planting is conducted, wherein high-quality branches are selected, the branches are firstly soaked in a 1000-time solution prepared by prochloraz for 3-5 minutes and then taken out for airing, and the branches are soaked in rooting powder liquid of 50 ppm for 20-30 minutes and then takenout for cutting; (4) top dressing is conducted; (5) field management is conducted. According to the cultivating method for jazmin flowers, soil preparation, branch selection, fertilizer applying, planting density and disease and pest prevention and control are strictly controlled, and the yield and quality of jazmin flowers are greatly improved.