In the writing of this thesis, the writer discusses legal protection for the Holder of Mortgage Right whose Object of the Mortgage Right is Blockade by Land Office upon the Request of Other Party, with the sample case at “Unit Bisnis Kredit Konsumer , PT. Bank Central Asia, Tbk”. In the effort to discover the legal aspect of such blockade towards the Object of the Mortgage Right, discover the reasons of the Land Office to blockade the Object of the Mortgage Right and the blockading process, as well as discover legal protection towards the Holder of Mortgage Right is blockaded by the Land Office, then, the approach being used is juridical – normative referring to the written regulations or positive laws as well as other legal sources, related to the issue. Based on the result of research and interview, the writer obtain answers towards the existing issue, the Legal aspect of the blockade over the Object of Mortgage Right in the sample case at “Unit Bisnis Kredit Konsumer, PT. Bank Central Asia, Tbk.”, is based on the prevailing theory and regulations which should not be used. Because of the object of Mortgage Right which has been encumbrance of Mortgage Right, the object (the certificate) has been checked for its clearance from any dispute. Whereas the reason of the Land Office to carry out the blockade over the certificate is because the request there is a request form other party. Whereas for the holder of mortgage right, if the object of the mortgage right is blockade by Land Office, there is no legal protection for him.