The thermal radiation discovered by Hawking implies that the entropy will increase through the Hawking process, which leads to the black hole information paradox. The “lost” information of black hole through the Hawking radiation was recently shown being stored in the correlation among the non-thermally radiated particles. This correlation information, which has not yet been proved locally observable in principle, is named by dark information. Our finding resolved the paradox: when the constraint of energy conservation is considered, the extremely small black hole radiation spectrum is obviously shown to be not perfectly thermal. This non-thermal radiation spectrum shows stronger correlations- a kind of “dark information”, and thus satisfies the requirement of information conservation. Based on this observation we also studied the influences of dark energy on black hole radiation. We find that the dark energy will effectively lower the Hawking temperature, and thus results in a longer life time for the black hole. It is also discovered that the non-thermal effect of the black hole radiation is enhanced by dark energy so that the dark information of the radiation is increased. Our observation shows that, besides the mechanical effect (e.g., gravitational lensing effect), the dark energy rises the stored dark information, which could be probed by a non-local coincidence measurement.