Disclosed are an Object Identifier (OID) configuration, a configuration method, an OID Resolution System (ORS) client, an OID node and a database thereof. The OID configuration method may include: a parent OID node performs Domain Name System (DNS) configuration on a service provided by an OID tree to form a DNS resource record, the OID tree including the parent OID node and at least one child OID node of the parent OID node; and the parent OID node stores the DNS resource record in a DNS database of the parent OID node. Also disclosed is a computer storage medium.