Currently,　the　image　retrieval　methods　focus　on　improving　the　retrieval　performance,　but　ignoring　preserving　the　problem　of　preserving　privacy.　Images　contain　a　great　deal　of　personal　privacy　information,　and　leakage　of　information　will　result　in　seriously　negative　effect.　Ensuring　the　image　retrieval　performance　while　preserving　the　confidentiality　of　data　has　become　the　key　issue　in　the　field　of　image　retrieval.　Based　on　the　Content-based　Image　Retrieval　(CBIR),　we　propose　a　secure　image　retrieval　scheme　in　the　encrypted　domain,　where　the　encrypted　features　can　be　used　in　similarity　comparison　directly.　This　paper　compares　the　ciphertext　retrieval　with　plaintext　retrieval　to　illustrate　that　the　proposed　scheme　could　achieve　the　comparable　retrieval　performance,　while　ensuring　the　image　information　security　at　the　same　time.