With the development of social economy, all industries are constantly reforming and innovating. In the process of enterprise development, human resource has become the key resource for enterprise survival and development. Employee retention has been paid attention by the top management of the enterprise today and is generally aware of the complexity and importance of employee management. The main purpose of this study was to determine the significant impact of factors on Employee Retention in the manufacturing sector. For the study, the researcher got 112 questionnaires from the online questionnaire survey, but there have 1 questionnaire was invalid data, therefore, there are 111 valid questionnaire data. The delivery of the questionnaires was carried out by physical "delivery and collection" of data to the manufacturing industries in Shanghai, China, such as: Shanghai automotive group co., LTD., bright food (group) co., Shanghai pharmaceutical group co. Therefore, this study includes an analysis of the main three influence factors that, in the opinion of the researcher, directly affect the productivity of employees. These factors are: working environment, welfare measures and rewards & recognition.