One oxide-fluoride Bi2TiO4F2 was prepared by mild hydrothermal method and characterized by powder X-ray diffraction, scanning electron microscopy and thermogravimetric analysis. The structure is described by space group 14/mmm with the cell parameter a ~ 3.806（0） A, b = 3.806（0） A, c = 16.318（1） A. The compound adopts a single layer Aurivillius-type structure with an ordered array of fluoride/oxide anions. The ferroelectric property of this material also has been investigated.%采用水热法制备了Aurivillius-型氟氧化合物Bi2Ti04F2，并通过粉末X-射线衍射、扫描电子虽微镜、差热-热重分析等手段对化合物的性质进行了测试和表征。该样品结构的空间群为14／mmm，晶胞参数为a=3．806（0）A，b=3．806（0）A，c=16．318（1）A，具有有序排列的F／O阴离子的单层Aurivillius-型结构，并对其铁电体性质进行了研究。
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