diff --git a/LanguageServer/src/main/java/org/nittalab/dtram/languageserver/model/Keywords.java b/LanguageServer/src/main/java/org/nittalab/dtram/languageserver/model/Keywords.java
new file mode 100644
index 0000000..76d7d1d
--- /dev/null
+++ b/LanguageServer/src/main/java/org/nittalab/dtram/languageserver/model/Keywords.java
@@ -0,0 +1,17 @@
+package org.nittalab.dtram.languageserver.model;
+
+/**
+ * {@link Keywords} class holds all keywords used in DTRAM.
+ *
+ * @author Shohei Yamagiwa
+ * @since 0.1
+ */
+public class Keywords {
+    public static final String CHANNEL = "channel";
+    public static final String INIT = "init";
+    public static final String IN = "in";
+    public static final String OUT = "out";
+    public static final String REF = "ref";
+    public static final String SUB_CHANNEL = "sub";
+    public static final String NATIVE = "native";
+}