Introduction: Strategic planning is the first function of senior managers, because they can define future status of organizations, external and internal changes, to use opportunities productively. This study was carried out to assess strategic plan of Kerman Healthcare Insurance Organization by fuzzy approach.

Methods: This is a descriptive- exploratory study, conducted as a case study. The information are constructed through a critical review of documentations on strategic planning, as well as, several interviews with members of planning committees to assess strategic planning process. The assessment forms are used for data collecting, presented by Tabibi & Maleki in their practical model. The data are presented as measurement of central tendency indexes. Fuzzy logic system approach (based on Mamdani Fuzzy system) was used for judgment and decision-making. 

Results: The sections of Planning for Strategic planning, strategies formulation and definition of assessment performance indicators had the lowest scores (0%) , and values statement the highest Scores (83%) . In the fuzzy system, P input score found Zero, SSMVVO input score 1. 9 and POTSI Score 0. 43. The score of output (SPO) determined “0. 547” by defuzzification step. The score of output (SPO) or the assessment of strategic plan was equal with 0. 62 represented in “reject of strategic plan” fuzzy set and a 0. 42 in “strategic plan need change great” fuzzy set.

Conclusion: Fuzzy logic provides a mechanism for assessing strategic plan which is too userfriendly, simplified and practical approach for senior managers to approve plans and control strategic planning process.