Dark agilawood having functions of calming nerves and promoting sleep and preparation method of dark agilawood

The invention discloses dark agilawood having functions of calming nerves and promoting sleep; the dark agilawood consists of natural perfumes and incense-preparing raw materials, wherein the natural perfumes include the following components in parts by weight: 1-12 parts of agilawood, 2-11 parts of radix aucklandiae, 4-13 parts of cassia bark and 2-14 parts of rhizoma nardostachyos; and the incense-preparing raw materials include the following components in parts by weight: 2-15 parts of benzoin, 4-16 parts of sandalwood, 4-11 parts of clove, 5-17 parts of lavender, 6-19 parts of rhizoma acori graminei and 3-12 parts of storax. The invention also discloses a preparation method of the dark agilawood having the functions of calming nerves and promoting sleep, wherein the preparation method comprises the following steps: S1, removing impurities; S2, drying; S3, weighing and proportioning; S4, crushing the raw materials; S5, grinding; S6, primarily blending; S7, further blending; S8, shaping; and S9, drying and