diff --git a/cmd/upgrade/upgrade.sh b/cmd/upgrade/upgrade.sh
new file mode 100644
index 000000000..76ee81b4c
--- /dev/null
+++ b/cmd/upgrade/upgrade.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+namespace=kubesphere-logging-system
+FluentbitOperator="fluentbit-operator"
+
+function error_exit {
+  echo "$1" 1>&2
+  exit 1
+}
+
+function migrate(){
+## Converting an existing configuration to a new one
+local oldKind=$1
+local newKind=$2
+local list=$(kubectl get  $oldKind.logging.kubesphere.io -A -o json) || error_exit "Cannot get resource $oldKind"
+local name=($(echo $list | jq -r '.items[].metadata.name | @json'))
+local labels=($(echo $list | jq -r '.items[].metadata.labels | @json'))
+local spec=($(echo $list | jq -r '.items[].spec | @json'))
+local ns=($(echo $list | jq -r '.items[].metadata.namespace | @json'))
+local size=${#spec[*]}
+echo "Number of original $oldKind configuration files:$size"
+for((i=0;i<${size};i++));do
+if [[ "${kind}" = "fluentbits" ]]; then
+cluster_resource_list[i]="{
+\"apiVersion\": \"fluentbit.fluent.io/v1alpha2\",
+\"kind\": \"${newKind}\",
+\"metadata\": {
+\"name\": ${name[i]},
+\"labels\": ${labels[i]},
+\"namespace\": \"${ns}\"
+},
+\"spec\": ${spec[i]}
+}"
+else
+cluster_resource_list[i]="{
+\"apiVersion\": \"fluentbit.fluent.io/v1alpha2\",
+\"kind\": \"${kind}\",
+\"metadata\": {
+\"name\": ${name[i]},
+\"labels\": ${labels[i]}
+},
+\"spec\": ${spec[i]}
+}"
+fi
+done
+
+## Uninstall the fluentbit-operator and the original configuration
+for((i=0;i<${size};i++));do
+echo "${name[i]}"
+  temp=$(echo ${name[i]} | sed 's/"//g')
+  echo "$temp"
+   kubectl delete  $oldKind.logging.kubesphere.io $temp -n ${namespace}
+done
+
+for((i=0;i<${size};i++));do
+echo ${cluster_resource_list[i]} | kubectl apply -f - || error_exit "Cannot apply resource $oldKind"
+done
+}
+
+migrate "Input" "ClusterInput"
+migrate "Parser" "ClusterParser"
+migrate "Filter" "ClusterFilter"
+migrate "Output" "ClusterOutput"
+migrate "FluentbitConfig" "ClusterFluentBitConfig"
+migrate "FluentBit" "FluentBit"
+
+# Determine if Deployment exists
+if kubectl get deployment -n $namespace $FluentbitOperator >/dev/null 2>&1; then
+    # Delete Deployment if it exists
+    kubectl delete deployment -n $namespace $FluentbitOperator
+    kubectl delete clusterrolebinding kubesphere:operator:fluentbit-operator
+    kubectl delete clusterrole kubesphere:operator:fluentbit-operator
+    kubectl delete serviceaccount fluentbit-operator -n $namespace
+    echo "Deployment $FluentbitOperator deleted"
+else
+    # If it does not exist, output the message
+    echo "Deployment $FluentbitOperator does not exist"
+fi
+
+## Delete the old crd
+kubectl get crd -o=jsonpath='{range .items[*]}{.metadata.name}{"\n"}{end}' | grep "logging.kubesphere.io" | xargs -I crd_name kubectl delete crd crd_name