The invention relates to a semen cuscutae capsule preparation technology. A capsule is prepared from 25% of semen cuscutae, 9% of pearl, 18% of chrysanthemum flowers, 15% of wolfberry 18% of ligustrum lucidum ait and 15% of concha haliotidis. A preparation method includes the following steps that 15% of concha haliotidis is placed in an interlayer pot and decocted for 30 min at 90 DEG C, then 15% of wolfberry, 25% of semen cuscutae and 9% of ligustrum lucidum ait are added, the mixture is decocted for 30 min at 90 DEG C, then 18% of chrysanthemum flowers are added and decocted for 20 min, juice is filtered, water is continuously added twice, decoction is conducted twice, juice is obtained twice, liquid of the three times is mixed and concentrated at 80 DEG C to be pasty, then 10% of hydrolytic pearl powder is added and mixed fully and stirred evenly, the mixture is cooled to become an extract, the extract is dried, smashed, sterilized and packaged in the capsule, and the semen cuscutae capsule is obtained.