A compound sea cucumber product, preparation method thereof and dosage forms thereof are disclosed. A fresh sea cucumber is cut open, the viscus thereof is taken out, and they are well-cleaned respectively and put into an airtight container; at 70 - 130°C, gelatinate for 1 min - 20 hours; thereafter freeze-dry till the water content is less than 10wt%; apply coarse crushing till the fineness reaches 10 ∼ 300 mesh; then apply ultra-micro crushing by means of an airflow crusher until the fineness reaches 100 ∼ 3000 mesh; lastly apply nanometer crushing by means of high-energy ball grinding mill till the fineness reaches 10 ∼ 1000nm. The nanometer sea cucumber extract is mixed with panax pseudo-ginseng saponins extract at the proportion of 99 - 80wt% : 1 - 20wt%. The compound preparation of nanometer sea cucumber and panax pseudo-ginseng saponins can greatly enhance the pharmacological functions of the sea cucumber single preparation or the panax pseudo-ginseng single preparation and eliminate the side effects of the single preparations when used alone. The compound preparation can achieve a better health-care effect than the single preparations and it can be applied for various health-care and medicinal purposes.