diff --git a/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/web/OpenstackSecurityGroupCodec.java b/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/web/OpenstackSecurityGroupCodec.java
new file mode 100644
index 0000000..ae9847e
--- /dev/null
+++ b/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/web/OpenstackSecurityGroupCodec.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.openstackswitching.web;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.Lists;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.openstackswitching.impl.OpenstackSecurityGroup;
+import org.onosproject.openstackswitching.impl.OpenstackSecurityGroupRule;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Collection;
+
+/**
+ * Encodes and decodes the Openstack Security Group.
+ */
+public class OpenstackSecurityGroupCodec extends JsonCodec<OpenstackSecurityGroup> {
+
+    private static Logger log = LoggerFactory
+            .getLogger(OpenstackSecurityGroupCodec.class);
+
+    private static final String SECURITY_GROUP = "security_group";
+    private static final String DESCRIPTION = "description";
+    private static final String ID = "id";
+    private static final String NAME = "name";
+    private static final String SECURITY_GROUP_RULES = "security_group_rules";
+    private static final String DIRECTION = "direction";
+    private static final String EHTERTYPE = "ethertype";
+    private static final String PORT_RANGE_MAX = "port_range_max";
+    private static final String PORT_RANGE_MIN = "port_range_min";
+    private static final String PROTOCOL = "protocol";
+    private static final String REMOTE_GROUP_ID = "remote_group_id";
+    private static final String REMOTE_IP_PREFIX = "remote_ip_prefix";
+    private static final String SECURITY_GROUP_ID = "security_group_id";
+    private static final String TENAN_ID = "tenant_id";
+
+    @Override
+    public OpenstackSecurityGroup decode(ObjectNode json, CodecContext context) {
+        JsonNode securityGroupNode = json.get(SECURITY_GROUP);
+        if (securityGroupNode == null) {
+            log.warn("SecurityGroup Json data is null");
+            return null;
+        }
+
+        String description = securityGroupNode.path(DESCRIPTION).asText();
+        String id = securityGroupNode.path(ID).asText();
+        String name = securityGroupNode.path(NAME).asText();
+        ArrayNode ruleInfoList = (ArrayNode) securityGroupNode.path(SECURITY_GROUP_RULES);
+        Collection<OpenstackSecurityGroupRule> rules = Lists.newArrayList();
+        for (JsonNode ruleInfo: ruleInfoList) {
+            OpenstackSecurityGroupRule openstackSecurityGroupRule =
+                    OpenstackSecurityGroupRule.builder()
+                        .direction(ruleInfo.path(DIRECTION).asText())
+                        .etherType(ruleInfo.path(EHTERTYPE).asText())
+                        .id(ruleInfo.path(ID).asText())
+                        .portRangeMax(ruleInfo.path(PORT_RANGE_MAX).asText())
+                        .portRangeMin(ruleInfo.path(PORT_RANGE_MIN).asText())
+                        .protocol(ruleInfo.path(PROTOCOL).asText())
+                        .remoteGroupId(ruleInfo.path(REMOTE_GROUP_ID).asText())
+                        .remoteIpPrefix(ruleInfo.path(REMOTE_IP_PREFIX).asText())
+                        .securityGroupId(ruleInfo.path(SECURITY_GROUP_ID).asText())
+                        .tenantId(ruleInfo.path(TENAN_ID).asText())
+                        .build();
+
+            rules.add(openstackSecurityGroupRule);
+        }
+        String tenantId = securityGroupNode.path(TENAN_ID).asText();
+
+        OpenstackSecurityGroup openstackSecurityGroup = OpenstackSecurityGroup.builder()
+                .description(description)
+                .id(id)
+                .name(name)
+                .rules(rules)
+                .tenantId(tenantId)
+                .build();
+
+        return openstackSecurityGroup;
+    }
+}