diff --git a/LZMA-SDK.spec b/LZMA-SDK.spec
new file mode 100644
index 0000000000000000000000000000000000000000..c05e949754e9064817df331a74d22a551227efc7
--- /dev/null
+++ b/LZMA-SDK.spec
@@ -0,0 +1,89 @@
+Name:           LZMA-SDK
+Version:        19.00
+Release:        1
+Summary:        SDK for lzma compression
+License:        Public Domain
+URL:            http://sourceforge.net/projects/sevenzip/
+Source0:        https://sourceforge.net/projects/sevenzip/files/LZMA%20SDK/lzma1900.7z
+BuildRequires:  gcc-c++ p7zip
+%description
+The LZMA SDK provides the documentation, samples, header files, libraries, and
+tools you need to develop applications that use LZMA compression.
+
+LZMA is default and general compression methods of 7z format in the 7-Zip program.
+LZMA provides a high compression ratio and fast decompression, so it is very
+suitable for embedded applications.
+
+%package doc
+Summary:        The help file of %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description doc
+The help file of %{name}.
+
+%package devel
+Summary:        Development headers for %{name}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+ 
+%description devel
+Development headers for %{name}.
+ 
+%prep
+%setup -q -c -n lzma1900
+
+for f in .c .cpp .cs .dsp .dsw .h .java .txt makefile; do
+   find . -iname "*$f" | xargs chmod -x
+done
+ 
+# correct end-of-file encoding for txt files in the DOC.
+sed -i 's/\r//' DOC/*.txt 
+ 
+# The following files in lzma belong to the iso-8859-1 character set.
+# They are currently converted to utf-8 character set type.
+for FILE in \
+DOC/7zC.txt \
+DOC/7zFormat.txt \
+DOC/lzma.txt \
+DOC/lzma-history.txt \
+DOC/Methods.txt \
+C/Util/7z/makefile.gcc \
+C/Util/Lzma/makefile.gcc \
+C/Util/LzmaLib/LzmaLib.def \
+C/Util/LzmaLib/resource.rc \
+CPP/Build.mak \
+CPP/7zip/MyVersionInfo.rc \
+CPP/7zip/Archive/Archive.def \
+CPP/7zip/Archive/Archive2.def \
+CPP/7zip/Bundles/Alone7z/resource.rc \
+CPP/7zip/Bundles/Format7zR/resource.rc \
+CPP/7zip/Bundles/Format7zExtractR/resource.rc \
+CS/7zip/Compress/LzmaAlone/LzmaAlone.csproj \
+CS/7zip/Compress/LzmaAlone/LzmaAlone.sln \
+CPP/7zip/Bundles/LzmaCon/makefile.gcc; do
+    iconv -f iso-8859-1 -t utf-8 $FILE > $FILE.utf8
+    touch -r $FILE $FILE.utf8
+    mv $FILE.utf8 $FILE
+done
+ 
+%build
+make -f makefile.gcc clean all CXX="g++ %{optflags} -fPIC" CXX_C="gcc %{optflags} -fPIC" LDFLAGS="%{?__global_ldflags}" -C CPP/7zip/Bundles/LzmaCon
+ 
+%install
+rm -rf %{buildroot}
+mkdir -p %{buildroot}%{_bindir}
+install -m0755 CPP/7zip/Bundles/LzmaCon/lzma %{buildroot}%{_bindir}
+mkdir -p %{buildroot}/%{_includedir}/lzma1900/
+find -iname '*.h' | xargs -I {} install -m0644 -D {} %{buildroot}/%{_includedir}/lzma1900/{}
+
+%files
+%{_bindir}/*
+ 
+%files devel
+%{_includedir}/lzma1900/
+
+%files doc
+%doc DOC/7z*.txt DOC/Methods.txt DOC/lzma.txt DOC/lzma-history.txt
+
+%changelog
+* Fri Dec 4 2020 tangmeng5 <tangmeng5@huawei.com> - 19.00-1
+- package init
diff --git a/README.en.md b/README.en.md
index 1e79816a476c45e4f0b567ee263c593c8ef3a5f3..17f978afdc2dd9bcb272dab04a5c170c9a6a2aef 100644
--- a/README.en.md
+++ b/README.en.md
@@ -8,15 +8,27 @@ Software architecture description
 
 #### Installation
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+1. Based on LZMA SDK version 19.00.
+
+2. Based on lzmacon directory code part of 7zip module, provide lzma command.
 
 #### Instructions
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+This project mainly provides a lzma command for the following operations on the 7z file of LZMA compression algorithm:
+
+1. List and extract 7z files;
+
+2. List and extract encrypted (password protected) 7z files;
+
+3. List, extract encryption (password protection) + encryption header (no visible content, file list, no password) 7z file;
+
+4. Create 7z compressed document;
+
+5. Create encrypted (password protected) 7z compressed documents;
+
+6. Create encryption (password protection) + encryption header (no visible content, file list, no password) 7z archive.
+
+Specific usage can be obtained by LZMA -- help
 
 #### Contribution
 
diff --git a/README.md b/README.md
index 24aa1e4a14ad0eda9adb0a226431f881fd682b5e..d8fde05145ccdf32f8d7dee3d509a35559247343 100644
--- a/README.md
+++ b/README.md
@@ -9,15 +9,27 @@ The LZMA SDK provides the documentation, samples, header files, libraries, and t
 
 #### 安装教程
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+1.  基于LZMA SDK 19.00版本构建。
+
+2.  基于7zip模块的LzmaCon目录代码部分，提供lzma命令。
 
 #### 使用说明
 
-1.  xxxx
-2.  xxxx
-3.  xxxx
+本项目主要提供一个lzma命令，供对lzma压缩算法的7z文件进行以下操作：
+
+1. 列出、提取7z文件；
+
+2. 列出、提取加密（密码保护）的7z文件；
+
+3. 列表，提取加密（密码保护）+加密头（无可见内容，文件列表，无密码）7z文件；
+
+4. 创建7z压缩文档；
+
+5. 创建加密（密码保护）7z压缩文档；
+
+6. 创建加密（密码保护）+加密头（无可见内容，文件列表，无密码）7z存档。
+
+具体使用方法可以使用lzma --help获取
 
 #### 参与贡献
 
diff --git a/lzma1900.7z b/lzma1900.7z
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index 0000000000000000000000000000000000000000..d0f20aa31f2ee22fbcb4a6ff751da51f4bad9359
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