The utility model provides a remote, unmanned on duty's floating subsea wellhead control platform, includes: floating subsea wellhead control platform, set up the ballast tank on floating subsea wellhead control platform, interior cabin, several layers of deck, ventilative wave wall, pillar, loop wheel machine, remote control gangway ladder, chemical agent cabin, wherein, floating subsea wellhead control platform links to each other with distant place owner's field facility to remote monitoring sets up the central control system cabinet on floating subsea wellhead control platform with control, this floating subsea wellhead control platform still is connected with main umbilical cable, and main umbilical cable and distribution unit under water are connected, and distribution unit divides umbilical cable to be connected with the several under water, and every divides umbilical cable to be connected with a subsea tree respectively to realize that floating subsea wellhead control platform supplies power, reaches subsea tree and control chemical agent's injection near subsea tree. The utility model discloses not only greatly reduced remote electric power transmission's expense, moreover, still practiced thrift space requirement, reduced the platform volume.