The filing of mortgage insurance policy refers to the process in which the owner keeps the insurance policy and other relevant documents properly after purchasing the mortgage insurance. These documents include car purchase contracts, vehicle registration certificates, insurance policies and other documents related to vehicles.

The purpose of policy filing is to facilitate car owners to find relevant documents when needed, and to ensure the validity of policies and other documents. If the policy is not filed, it will have an impact on business handling and driving on the road.