The invention discloses a Yixingrui Brand soft 
capsule containing coenzyme Q10 which can improve 
immunity and fight against cancers, and a preparation method and application thereof. The preparation method comprises the following steps: using 45-55g of raw 
medicine containing coenzyme Q10 with content more than or equal to 99 percent as an effective ingredient, using 100-300g of perilla 
herb oil as 
solvent, preparing the effective ingredient and the 
solvent into contents at 40-50 DEG C, proportioning 200-300g of 
gelatin, 100-250g of glycerin, 250-400g of 
purified water, 0.8-1.2g of 
pigment and 1-1.2g of pulpy antholeucin to prepare 
capsule material, adopting 
sol to prepare the contents and pressing 
pellets, conducting processes such as 
drying, pellet picking and the like of a soft 
capsule preparation technology, and pressing the material 
medicine into 1000 Yixingrui Brand soft capsules at 50-55 DEG C through a soft capsule pressing technology. The invention is characterized in that the physical 
efficacy of the coenzyme Q10 is adopted, 
solvent, 
vitamin and minerals with collaborative function are screened and the raw 
medicine is pressed into 
pellets by adopting the matured Yixingrui Brand soft capsule preparation technology. According to stability tests, evaluative animal safety tests, hygienic tests and 
efficacy tests, the invention has the advantages of stable form and 
efficacy ingredients, no toxic and side effects, strong 
immunologic function, novel anticancer indication effect and promising application prospect.