The invention discloses an empty 
capsule and a soft 
capsule based on 
modified starch. The empty 
capsule is prepared from the following raw materials: 40 to 90 parts of the edible 
modified starch, 3 to 30 parts of gelatinizer, 2 to 20 parts of 
plasticizer, 2 to 20 parts of 
plant fiber, 10 to 50 parts of deionized water, 1 to 6 parts of colorant and 
opacifier, and the empty capsule is prepared by the following procedures of mixing, glue dissolving, degassing, dipping, 
drying, shell pulling and 
cutting; the soft capsule is prepared from the following raw materials: 30 to 60 parts of edible 
modified starch, 8 to 40 parts of gelatinizer, 6 to 20 parts of 
plasticizer, 6 to 20 parts of 
plant fiber, 20 to 60 parts of deionized water, 1 to 6 parts of colorant and 
opacifier, and the soft capsule is prepared by the following procedures of mixing, glue dissolving, degassing, dipping, 
drying, shell pulling and 
cutting. According to the empty capsule and the soft capsule, a series of problems of long disintegration time, 
fragility, poor 
water retention and the like of an existing 
starch capsule and soft capsule are solved, and 
gelatin is replaced by 
starch, so that the empty capsule and the soft capsule have the advantages of low cost, stable chemical properties, difficulty in growing of 
microorganism, difficulty in getting fragile, difficulty in crosslinking and the like and are suitable for long-term storage.