diff --git a/src/release/release.py b/src/release/release.py
index 94cd6ed..75b043b 100755
--- a/src/release/release.py
+++ b/src/release/release.py
@@ -4,7 +4,7 @@
 from utils import loadBook
 from utils import txtRelease
 from utils import jsonRelease
-from utils import htmlRelease
+from utils import mobiRelease
 from utils import staticRelease
 from utils import gitbookRelease
 
@@ -13,6 +13,6 @@ metadata, content = loadBook('rc-5')
 
 # txtRelease(metadata, content)
 # jsonRelease(metadata, content)
-htmlRelease(metadata, content)
+mobiRelease(metadata, content)
 # staticRelease(metadata, content)
 # gitbookRelease(metadata, content)
diff --git a/src/release/utils/__init__.py b/src/release/utils/__init__.py
index 1f7f49c..cc6b786 100644
--- a/src/release/utils/__init__.py
+++ b/src/release/utils/__init__.py
@@ -5,6 +5,6 @@ from .common import loadBook
 
 from .release import txtRelease
 from .release import jsonRelease
-from .release import htmlRelease
+from .release import mobiRelease
 from .release import staticRelease
 from .release import gitbookRelease
diff --git a/src/release/utils/common.py b/src/release/utils/common.py
index f457f5e..e016293 100644
--- a/src/release/utils/common.py
+++ b/src/release/utils/common.py
@@ -20,8 +20,8 @@ releaseInfo = {  # release file name
     'epub': '栩栩若生.epub',
     'mobi': '栩栩若生.mobi',
     'static': 'XXRS.tar.xz',
-    'calibre': 'xxrs.html',
     'gitbook': 'xxrs-online/',
+    'calibre': 'xxrs-calibre/',
 }
 releaseInfo = {  # convert to absolute path
     key: os.path.join(releasePath, file) for (key, file) in releaseInfo.items()
diff --git a/src/release/utils/release.py b/src/release/utils/release.py
index b19e06e..5b27cd6 100644
--- a/src/release/utils/release.py
+++ b/src/release/utils/release.py
@@ -129,3 +129,46 @@ def staticRelease(metadata: dict, content: dict) -> None:
     staticDepends(tempDir.name, metadata, content)
     staticBuild(tempDir.name)
     tempDir.cleanup()
+
+
+def calibreDepends(workDir: str, metadata: dict, content: dict) -> None:
+    metaInfo = [
+        '<?xml version="1.0"?>',
+        '<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">',
+        '<rootfiles>',
+        '<rootfile full-path="content.opf" media-type="application/oebps-package+xml"/>',
+        '</rootfiles>',
+        '</container>',
+    ]
+    opfInfo = [
+        '<?xml version="1.0" encoding="utf-8"?>',
+        '<package xmlns="http://www.idpf.org/2007/opf" version="2.0" unique-identifier="uuid_id">',
+        '<opf:metadata xmlns:opf="http://www.idpf.org/2007/opf" xmlns:dc="http://purl.org/dc/elements/1.1/">',
+        '<dc:title>%s</dc:title>' % metadata['name'],
+        '<dc:language>zho</dc:language>',
+        '<dc:publisher>Dnomd343</dc:publisher>',
+        '<dc:creator opf:file-as="%(aut)s" opf:role="aut">%(aut)s</dc:creator>' % {'aut': metadata['author']},
+        '<dc:contributor opf:file-as="calibre" opf:role="bkp">%s</dc:contributor>' % projectUrl,
+        '<dc:description>%s</dc:description>' % '&lt;div&gt;%s&lt;/div&gt;' % (
+            ''.join(['&lt;p&gt;%s&lt;/p&gt;' % x for x in metadata['desc']])
+        ),
+        '<meta name="calibre:author_link_map" content="{&quot;%s&quot;: &quot;&quot;}"/>' % metadata['author'],
+        '<meta name="calibre:title_sort" content="%s"/>' % metadata['name'],
+        '</opf:metadata>',
+        '<manifest>',
+        '<item id="html" href="xxrs.html" media-type="application/xhtml+xml"/>',
+        '<item id="ncx" href="toc.ncx" media-type="application/x-dtbncx+xml"/>',
+        '</manifest>',
+        '<spine toc="ncx">', '<itemref idref="html"/>', '</spine>',
+        '</package>',
+    ]
+    createFolder(os.path.join(workDir, 'META-INF'))
+    saveFile(os.path.join(workDir, 'mimetype'), 'application/epub+zip')
+    saveFile(os.path.join(workDir, 'content.opf'), '\n'.join(opfInfo) + '\n')
+    saveFile(os.path.join(workDir, 'xxrs.html'), htmlSerialize(metadata, content))
+    saveFile(os.path.join(workDir, 'META-INF', 'container.xml'), '\n'.join(metaInfo) + '\n')
+
+
+def mobiRelease(metadata: dict, content: dict) -> None:
+    createFolder(releaseInfo['calibre'])
+    calibreDepends(releaseInfo['calibre'], metadata, content)