The invention discloses a breeding method for polygonatum cyrtonema seeds. The method comprises the steps: a. seed collection and storage: picking mellow polygonatum cyrtonema fruits, rubbing off coats, carrying out rinsing, and carrying out shade drying; selecting a leeward and shady place, digging a cellar, placing wooden boxes in the cellar, placing fine sand with the thickness of 3cm in each wooden box, then, spreading the polygonatum cyrtonema seeds, and then, laying fine sand with the thickness of 1cm; and then, covering the wooden boxes with sunshade nets, and then, carrying out covering with rice straws; b. seed germination hastening: taking out the cellared seeds, and screening out superficial fine sand; soaking the sterilized seeds with constant-temperature water, then, loading the soaked seeds to the wooden boxes, and possibly using cotton cloth or rice straws as bedding; adopting temperature-changed and temperature-controlled germination hastening, and keeping wet; and carrying out sowing after white spots emerge on seed coats; and c. sowing: digging up sterilized soil to be loose, allowing the soil to be fine, then, applying farmyard manure, then, carrying out sowing, covering the seeds with a layer of fine soil after sowing, and carrying out spray watering according to soil humidity; and then, covering surfaces with a layer of firewood for water retention, heat preservation and weed control. According to the method, by using a seed cellar sand storage and breeding technology, the germination percentage is high; and by adopting indoor temperature-changed germination hastening, the rate of seedling emergence is high.