Marx's theory of ownership argues that the nature of ownership determines the form of realization of ownership. However, the form of ownership does not necessarily correspond to ownership. At present, the mixed ownership economy has gradually become the main form of public ownership, has become an important form of realization of the basic socialist economic system, and the mixed ownership economy approved and used is the use of capital, which is not only in the theory of the essence of socialism under the guidance of the ideological emancipation of major achievements, and understanding of the relationship between the essence of socialism and further enrich the public ownership. Mixed ownership economy can be compatible with different ownership, breaking the traditional public ownership economy especially the state-owned property rights of single virtual home and other ills, can better adapt to the basic requirements of economic diversification and asset management market and market economy, to build up a bridge between public ownership and market economy". At the same time, by absorbing the non-public economy to participate in the state-owned enterprises, the investment subject is truly diversified and the corporate governance structure can be effectively run.

The mixed ownership economy is not to deny the dominant position of the socialist public ownership. On the contrary, it is fundamental to unswervingly consolidate and develop the public sector of the economy. Public ownership refers to the dominance of state-owned assets in the total social assets, and the state economy controls the lifeline of the national economy and plays a leading role in the development of the economy. In the socialist system, the public ownership economy plays a dominant role in the ownership structure, playing a role in controlling, guiding and safeguarding the national economy, and promoting the development of the socialist economy with Chinese characteristics to a comprehensive, coordinated and sustainable way. The public ownership of production data is the economic basis of socialism and determines the nature of the socialist society. To adhere to the public ownership is to adhere to the socialist direction. At the same time, the insistence on the subject of public ownership is the objective requirement of the development of China's productive forces and the mode of production at the present stage. In the process of economic globalization, the public sector of the economy, especially the state owned economy, is still the main force to maintain the competition between the national economy and the foreign monopoly capital. However, if the public sector of the economy lacks vitality, a large number of state-owned enterprises are losing money, a large number of state-owned assets will be lost, and the depreciation of state capital is shrinking, the public sector of the economy will not only be unconvincing, but also difficult to assume the role of the main body. The affirmation of mixed ownership is a breakthrough and innovation to a relatively single ownership structure, and a bold attempt to reform the state owned enterprise. As a form of capital organization of state-owned enterprises, it does not have to change the nature of state-owned enterprises, nor is it aimed at denying public ownership, but to manage state-owned assets through other assets, so as to realize the preservation and appreciation of state-owned capital and enhance competitiveness.

In the past, it was generally believed that in the socialist system, the state owned enterprises should be taken as the carrier for the production and operation of the state-owned assets. However, the situation of state-owned enterprises makes us realize that when state owned enterprises lack vitality or poor management, or even cause corruption due to institutional defects, the idle and drain of state assets will become an unavoidable reality. The mixed ownership economy will help to realize the capitalization of state-owned assets and promote its benign flow through many ways, such as state-owned capital, collective capital, cross shareholding of non-public capital and integration. At the same time, the mixed ownership economy also provides a system basis for the formation of a higher level of cooperation between the public sector, the non-public sector and the joint-venture and cooperative economy with state-owned and collective components.

In the primary stage of socialism, public ownership and non-public ownership are unified in the development of socialist modernization. They show the relationship between common promotion and common development. After 30 years of development, the non-public economy has become an important part of the socialist market economy from the added status, is the basis and impetus for economic and social development of contemporary Chinese: private economy and public economy with the development of the productive forces the bear, China for the contemporary development of socialist market economy and economic growth into the lasting vitality the non-public sector of the economy; made outstanding contributions to promoting regional economic development; to promote the non-public economy to establish and perfect the socialist market economic system, to promote the society will play an important role in the construction of harmonious society. At present and in a long period of time, the non-public economy will be the strongest and most stable driving force for the development of the national economy. In many places, the non-public sector of the economy actively participates in the reorganization and transformation of state-owned enterprises to achieve complementary advantages and promote the successful transformation of state-owned enterprises.