The invention discloses composite essential oil with an anti-insomnia effect. The composite essential oil is prepared by mixing 1-5 parts of rose essential oil, 1-5 parts of flores aurantii essentialoil, 1-5 parts of jasmine essential oil, 1-5 parts of sweet-scented osmanthus essential oil, 1-5 parts of michelia champaca essential oil, 1-5 parts of bergamot orange essential oil, 1-5 parts of lemon essential oil, 1-5 parts of mint essential oil, 1-5 parts of holly essential oil, 1-5 parts of pelargoniums essential oil, 1-5 parts of rosemary essential oil, 1-5 parts of cedar essential oil, 1-5parts of sandalwood essential oil, 1-5 parts of linalool, 1-5 parts of acetic acid lavender ester, 1-5 parts of phenethyl alcohol, 0.1-1.5 parts of radix angelicae sinensis essential oil, 0.1-1.5 parts of benzoin, 0.1-1.5 parts of mastic, 0.1-1.5 parts of a myrrh extract, 0.1-1.5 parts of a radix notoginseng extract, 0.1-1.0 part of chuanxiong rhizome essential oil, 0.1-1.0 part of saffron essential oil, 0.1-1.0 part of rhizoma nardostachyos essential oil, 0.1-1.0 part of a rhizoma paridis extract, 5-25 parts of glycerinum, 10-50 parts of edible alcohol and 10-25 parts of purified water. The composite essential oil is unique in composition, the making technology is simple, the application method is flexible and diverse, the composite essential oil has a good nerve calming and sedative effect, the tension mood can be relieved, the mood is adjusted, the composite essential oil is applied to household aromatherapy for improving the environment smell and has a certain bacterium inhibitionand pathogen transmission prevention function, more experience can be provided for a user, and different demands are met.