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１９９１～１９９３年在北京对东亚小花蝽的越冬进行了研究。结果表明：东亚小花蝽以交配或未交配的雌成虫越冬。越冬场所的土壤湿度影响小花蝽的存活率。３月中旬检查，室外自然条件下，越冬存活率为７．７４％。在控制土壤含水量（４％、１２％和２０％）的条件下，越冬存活率随土壤水分的增加而递增，水分２０％时存活率最高，平均为８１．１１％。３月中旬气温回升后将越冬小花蝽雌成虫移入７℃的冰箱，贮存至５月上旬，存活率为５５％，而自然条件下小花蝽已全部死亡
From 1991 to 1993, the overwintering of water bug in East Asia was studied in Beijing. The results showed that: East Asian flower stink bug female or unpaired mating winter. Soil moisture in wintering places affects the survival rate of S. japonicus. In mid-March inspection, outdoor natural conditions, the survival rate of 7.74% overwintering. Under control of soil moisture content (4%, 12% and 20%), the survival rate of overwintering increased with the increase of soil moisture, and the highest survival rate reached 20.11% with an average of 81.11%. After the temperature rose in mid-March, the wintering female Beetle was moved into the refrigerator at 7 ℃ and stored until the first ten days of May. The survival rate was 55%