Abstract: Objective  To understand the impact of the numbers of TB core information on TB awareness in order to explore the most scientific and straightforward ways of expression, and meet the proposed 85% of TB awareness target set by National TB Control Program(2011—2015).  Methods The self-designed questionnaire was used in this survey. The people who pass through the gate of the hospital were sequentially investigated by health worker. 272 copies of questionnaire were distributed and 260 copies returned. The response rate is 95.6%.  Results Of the 260 copies of valid questionnaires, the awareness rate of first four pieces of TB Core Information were 84.7%(881/1040), 4.9 percent higher than that of all five pieces 79.8%（1037/1300）. The difference is statistically significant (χ²=9.55, P=0.00). In youth and old-age groups, the awareness rate of all five pieces was also significantly lower than that of the first four pieces, (85.0% and 90.5%, 71.1% and 77.4% respectively, χ²=4.58，4.29；P＜0.03、0.04). In terms of awareness rate, for the middle-aged group, although there has no statistically significant difference between four pieces and five pieces, the rate of four pieces is 3.1 percent higher than five pieces. In comparison of awareness rate of four pieces and five pieces in different education level, 77.4% and 67.1% for people with primary education, and 84.7% and 81.2% for people with secondary education, and 88.8% and 82.5% for people with college education, there is no significant difference (χ²＝3.62，3.56，3.60；P=0.06，0.06, 0.06).  Conclusion Adopting questionnaire with four pieces of TB core information can improve the TB awareness rate than that with five pieces of information. In public awareness survey, this could replace the questionnaire with five pieces of TB Core Information.

Key words: Tuberculosis,pulmonary/prevention &, control, Questionnaires, Health education