The invention provides pellet feed for grass carp, and the raw material and weight share are as follows: bean of 10 to 20 shares, rapeseed cake of 15 to 25 shares, cottonseed cake of 10 to 20 shares, wheat bran of 10 to19 shares, secondary flour of 10 to 15 shares, rice bran of 10 to 20 shares, fishmeal of 3 to 6 shares, stone dust of 1 to 2.5 shares, salt of 0.1 to 0.5 shares, dry cactus powder of 0.4 to 0.6 shares, dry aloe powder of 0.3 to 0.5 shares, dry garlic powder of 0.1 to 0.3 shares and probiotics preparation of 0.2 to 0.6 shares. The preparation method for pellet feed is as follows: the raw material is firstly taken out and weighted and then crushed into powder, and then is stirred and mixed, finally, mixture is made into pellet feed which is the finished product. Pellet feed is rich in nutrient, the grass carp grows fast after eating pellet feed, the cost of raising the grass carp is greatly reduced and the immune function of the grass carp is greatly improved. The disease prevention, medical treatment and anti-virus capability of the grass carp are also enhanced.