The study aims to identify the role of strategic planning in achieving sustainable development in the Hadramout Corporation for Consultation and Sustainable Development, which is considered, according to Yemeni law, to be a medium-sized company. The sample of the study was represented in Hadramout institutions for consulting and sustainable development, and the number of respondents was (30) employees in the institution out of a total of (50) employees, meaning that the questionnaire was distributed to (60%) of the total number of employees in the institution. The researcher used the descriptive and analytical approach to achieve the goals The study and testing its hypotheses represented the independent variable in the strategic planning represented in (the external environment, the internal environment, the mission and goals) while the variable dependent on the study was the competitive advantage, the researcher used the questionnaire in the study as an appropriate tool for the study, where the formulation of the questionnaire was represented by the total items of the questionnaire for the independent variable Strategic planning and its chosen dimensions in the study (external environment, internal environment, mission and goals) (23) questions, while the total paragraphs of the questionnaire for the dependent variable, which is the competitive advantage (16) questions, and the researcher used the five-point Likert scale consisting of five points and the following statistical package (SPSS) and methods Statistics for data processing, which are (frequency, percentages, weighted average, standard deviation, regression analysis, coefficient of variation A) To analyze the paragraphs of the questionnaire, the researcher also used to test hypotheses (T of favoritism, T of tabulation, T of significance, correlation coefficient, coefficient of determination) to test the hypotheses. The external environment, the internal environment, the mission and objectives) has a role in achieving the competitive advantage, and the current study suggested paying attention to employees and achieving coordination and communication between them to achieve a kind of distinction, efficiency in the services provided by the institution and educating and training employees on the importance of applying the objectives and mission of the institution because of its great impact On the organization and its performance, the institution must prepare high competencies that control the techniques of public institutions for sustainable development.