The invention mainly relates to a soft 
capsule helpful for increasing 
bone density and a preparation method thereof. The soft 
capsule helpful for increasing the 
bone density is characterized by consisting of the following raw materials in parts by weight: 400-550 parts of 
linseed oil, 10-30 parts of red deer bone superfine 
powder, 10-30 parts of an 
astragalus extract, 10-30 parts of 
bone collagen, 10-30 parts of an 
angelica extract, 1-3 parts of 
vitamin D and 10-30 parts of a 
drynaria rhizome extract. The soft 
capsule disclosed by the invention, guided by theories of 
traditional Chinese medicine and based on modern research achievements of the 
traditional Chinese medicine, is careful in 
material selection, strict in composition and rational in combination, and is added with natural components capable of improving 
osteoporosis, so that the composition can tonify Qi and benefit blood, enhance 
immunity, relieve fatigue, strengthen tendons and bones, remove 
pathological wind and promote 
diuresis, regenerate tissue to heal wound, and integrally improve 
physical function, and circulations of Qi and blood are smooth, and 
metabolism is normal. Red deer bone functions as strengthening tendons and bones, and regenerating tissue to heal wound; 
drynaria rhizome can relieve 
joint pain, and relieve 
osteoporosis; 
vitamin D has a function of resisting rachitis, and can promote 
calcium absorption; 
astragalus can promote regeneration of injured nerve; angelica functions as replenishing blood and promoting 
blood circulation, regulating menstruation and relieving pain, and relaxing bowl; and 
linseed oil has functions of preventing and treating cancers, 
coronary heart disease, diabetes, prostatic 
cancer and other diseases. The composition is remarkable in functions of replenishing blood and benefiting blood, and strengthening tendons and bones.