In recent years，the external environment of non-state-owned capital investing the media field in China has been improving constantly.It is strictly limited that the involvement of non-state-owned capital in the core business（news and publishing）of the media field.In the meanwhile，investment in the non-core business areas is more multicultural and complex.Based on domestic and international experience，this paper believes that the relevant policies should be open to the non-state-owned capital investing the media field.But considering the public interests，cultural security，ideology security and other factors，it is important to protect the dominance of the core business（news and publishing），especially to make appropriate restrictions for foreign capital investing the media field in China.