Abstract: Using the method of Singular Spectrum Analysis(SSA),the evolution regularity of tropical cyclones landing in Guangdong are analysed. The main periods of yearly topical cyclones landing in Guangdong are found at 8 and quasi-3 years,and in the west of Pearl River's mouth are 12 and quasi-2 years in the west of Pearl River's mouth. The north-west Pacific that generate topical cyclones are cut into 8 areas,and the Sea-Surface Temperature (SST) in each area are analysed using SSA. The main periods of NINO-west are 8 and 3 years,and the Warm-pool are 12 and 2 years,respectively. This may be the physical reason that generates tropical cyclones landing in Guangdong. By combining the Maximum Entropy Method(MEM) with SSA(SSA-MEM),the yearly variation trend of tropical cyclones landing in Guangdong and the mouth of Pearl River are forcasted,and the result are good. The method can be used in operational short-range climate forcast.