ADR is alternative dispute resolution that includes mediation, adjudication, arbitration, conciliation and ombudsman schemes. ADR may be an alternative to going to court or to a tribunal. The main types of ADR are conciliation, arbitration or mediation and ADR is divided into national leading ADR and private lading ADR and national leading ADR includes court-annexed ADR and administrative ADR. Court-annexed ADR has become a well established feature of the judicial systems on a global basis. The bulk of court-annexed ADR in Glove is by way of mediation. Thus each nation takes part in ADR by court involvement and Enactment of ADR-related Laws. And the involvement of nations have both the regulative character and promotive character in ADR. In addition to the national leading ADR, the private leading ADR also must be activated as United Kingdom. Thus this paper deals with national leading ADR and private leading ADR and the purpose of this paper is to contribute to the activation of ADR by studying the promotion and limited the involvement of nation in ADR and private leading ADR in United Kingdom.