The invention discloses a common rush hemostatic capsule as well as preparation and identification method thereof. The preparation and identification method comprises the following steps: mixing Szechuan common rush, tomentose agrimony and copperleaf herb together in the weight ratio of 1: 1: 1, adding water in two steps for decocting, obtaining the filtrate, concentrating the filtrate and cooling the filtrate until a room temperature; adding ethanol to the filtrate for standing, and filtering to obtain the liquid supernatant and the precipitate; filtering the precipitate by use of ethanol to obtain the liquid supernatant; blending the liquid supernatants obtained twice, concentrating at a certain temperature, adding dextrin while hot, mixing evenly, spray-drying, and collecting a spray-dried powder; adding the dextrin, calcium hydrophosphate and starch, mixing evenly, forming a soft material by use of 80% ethanol, pelleting, drying particles at 50 DEG C, adding magnesium stearate and mixing evenly, and putting the mixture into capsules. The obtained common rush hemostatic capsules are capable of clearing heat and promoting dieresis, and astringing to stop bleeding, and contain over 2.5mg/g of gallic acid. The common rush hemostatic capsules can be applied to internal hemorrhoid hemorrhage, hyporrhea after artificial abortion operations and intrauterine device insertion, and the like. Furthermore, the common rush hemostatic capsules are quick to absorb, high in curative effect, non-irritating to intestines and stomach, and also free from side effect.