Abstract: The study was make up of three part：the initial water contain was determined by unresurgence drying, resurgence drying and air-dry method, the result showed that there were no difference among them, but the average value was concentrated in unresurgenee drying and the repeatability was the best one. In CP, EE and Ash, feed samples should be smashed and pass bouh of 0.45 mm. In CF, samples should smash and pass bouh of 1.0 mm, and feed samples cremated is avery important and indispensable process.