As a measure of enterprise development, affecting an important indicator of business performance, employee happiness’s affecting factors have drawn more and more widespread attention. However, are the factors affecting their happiness in enterprises of different ownership in the same way? This paper selects four dimensions: total compensation, organizational commitment, self-realization and health concerns from the degree of influence on employees by a subjective and psychological comprehensive measure of well-being; We build a theoretical model of comprehensive happiness for employees. We also use the correlation analysis and regression analysis under different ownership forms to find out the factors affecting their well-being. The results showed that factors about employees’ happiness are different under different ownership of enterprises.