Abstract: Frequency parameter of Chinese characterconstituent and their combinations,in GB2312-80 were computed using FoxBASE techenique. "The Database of character constituents" and The Database of Character "Constituent Combinations"were produced as the result. The former consisted of 576 character constituents.the later consisted of 7583 2 constituents combinations Everv constituent or combination had 2 attributions. one was the number of Chinese characer combining by character constituents or their combination, another was the frequency.The character constituents or their combination, another was the frequency,The character constituents and their combinations had similar pattern of uneven distribution,and most of them had low frequences. These 2 databases could be applied in the experimental research of Chinese cognition, learning and memory, it also could be used in the qualitative analvsis of Chinese character and computer processing ot Chinese information.

Key words: Chinese character constituent, combination of Chinese character constituents, number of Chinese characters combining by character constituents or their combinations, frequency, database