Abstract: In recent years， the public have been paying more attention to the construction of ecological civilization in that such problems as ecological destruction and environmental pollution occur frequently. Understanding the status of ecological civilization construction is not only a premise for the public to orderly participate in the construction of ecological civilization， but also of benefit to prevent the happening of unfavorable acts to ecological environment， handle environmental issues timely， and help achieve the goals of ecological civilization construction smoothly and fast. However， the system of right to know in China falls behind the times， with many deficiencies in terms of right subject， right object and right protection. Therefore， it is essential that the scope of right subject should be expanded， the scope of confidential information should be strictly limited， and the judicial relief should be perfected so as to provide legal protection of the publics right to know in the construction of ecological civilization.

Key words: construction of ecological civilization, ecological environment, right to know, right subject, scope of information disclosure