A letter from the force says the rally planned in Causeway Bay is therefore “banned”, while the police are “objecting” to the plan to hold a march from Causeway Bay to Central.
The police say there has been “chaos”, “violence”, “road blockages” and “destruction” following previous marches organised by the front, and the organisers would not be able to control those joining the planned protest.
They also say the proposed route for the march would pass close to high-risk buildings including the police’s headquarters in Wan Chai, Government House in Central, and several MTR stations.
Police have banned a number of protests in recent weeks, with most of them going ahead regardless.
The Civil Human Rights Front have been responsible for some of the bigger protests this summer, including the peaceful marches on Hong Kong Island attended by hundreds of thousands of people.
The front said on Thursday that is appealing against the latest ban.