Abstract: Based on the daily forecast,combined with the conventional observation data and numerical forecast products,we summarized and analyzed the first low temperature and frost weather of Meizhou in 2011.The analysis results showed that:① The process of the low temperature and frost weather was belong to radiation,the low temperature duration was short.② There was a short-term rebound warm phenomenon before the cold air coming in Meizhou.③ The cold air passing made the foundation temperature lower,and under the controlling of northwest airflow in the upper and cold high pressure ridge on the surface,Meizhou is very prone to occur low temperature and frost;④ Numerical prediction of the cold air situation is accurate,and have a high reference value,but the temperature prediction are often only considered the advection cooling effect,and the ability to forecast the radiation cooling is lower.