The aim this study aimed to identify the dimensions of lean manufacturing (continuous improvement, comprehensive maintenance, production on time) and its relation to enhancing the productivity of employees in the supervisory and administrative positions of Aziza Poultry Company- Tulkarem. The main challenges that face the Palestinian Economy: Poor purchasing power at the local market, Lack of insurance systems, Price fluctuation, Israeli Competition, Poor coordination among companies. The researchers used the structural equation modulation method; the questionnaire was distributed to the 140 employees in the factory, according to the data of the employees at the factory. The most important results of this study were: A positive correlation was achieved between the combined manufacturing. The productivity at the plant level in question, which was indicated by the results of statistical analysis, achieved a positive correlation between the dimensions of the small manufacturing process and the improvement of productivity. This was indicated by the results of the statistical analysis. Between displacements in terms of the strength of the link to Improvement of Production, there is a significant effect of excluding the lean manufacturing combined in Improvement of Production, which explicitly indicates that organizations that seek to apply these dimensions well and continuously will certainly have the ability to achieve productive improvement. Several recommendations have been reached: Corporate management should adopt the good and proper application of the lean manufacturing philosophy and ensure that this application is successful because of its significant impact on cost reduction and Improvement of Production. Special training sessions for managers and employees of industrial companies on how to implement the lean manufacturing system, pay adequate attention to the integration of all the pillars of lean manufacturing because one complement the other in order to achieve a direct impact on the achievement of the advantage of improving productivity, increasing cooperation between companies and teaching staff in universities with expertise in modern manufacturing systems In order to benefit from their experiences.