以季节单位根检验和确定型季节性检验为基础,提出了一个时间序列季节特征识别的方法体系,它的检验逻辑一致,结果完备,能够统一、规范、高效地识别国际贸易中农产品时间序列存在的季节特征及其类型。对橙子、马铃薯和猪肉3种产品月度贸易数据的季节特征识别结果及分析表明该体系是有效的。 Based on the season unit root test and the deterministic seasonal test, a time series seasonal feature identification method system is proposed. Its test logic is consistent and the result is complete. It can unify, standardize and efficiently identify the existence of time series of agricultural products in international trade Seasonal characteristics and their types. The results of seasonal characteristic recognition and analysis of the monthly trade data of orange, potato and pork show that the system is effective.