Does my country have the ability to intercept Tomahawk cruise missiles?

Yes

The Tomahawk is actually similar to an ultra-low-altitude, slow-flying drone. I found that it is not difficult to shoot it down in the future.

It is really difficult. It is to detect and lock the target. Maozi’s S400 was at a loss in Syria because of this

China currently has a relatively complete detection and early warning network, which can realize data sharing and A-launch and B-missile. Has interception capabilities