Introduction: Whereas Tuberculosis is outcome of poverty and poverty is outcome of ignorance and ignorance is the most important index of cultural weakness, this study was aimed to design and evaluate health educational planregarding to tuberculosis disease in patients s' family members in Zabol.

Methods: This study was interventional – semi experimental (before and after).study population includepatients s' family membersin summer 2010, 95 person. Research tool was a questionnaire designed as to assess knowledge, attitude and performance in relation with tuberculosis disease which consists of 27 questions: 20, 9 and 14 questions regarding to knowledge, attitude and performance respectively. Education was performed through lecture and face to face education. Collecteddata analyzed by SPSS software 18 using statistical tests such as independent t-test, paired t-test one-way ANOVAs and Tukey test.

Results: Mean of knowledge score of participants in before of education was 9.93 that it increased to 17.42after education (p<0.05). Mean of attitude score of participants in before of education was 3.67 that it increased to 7.45 after education (p<0.05) Mean of performance score of participants in before of education was 7.04 that it increased to 12.77 after education (p<0.05).

Conclusion: Effective educational plan can increase the level of knowledge, attitude and performance of community about various diseases and then it leads to community’s health promotion. Therefore health authorities and planners can promote community health through educational plans and knowledge improvement.