We experimentally verified the wired transmission of the probabilistically shaped 8-level pulse amplitude modulation (PS-PAM8) signal over terahertz hollow-core fibers in a photonic-aided W-band communication system by using the probabilistic shaping technology. Via the envelope detection scheme, we carried out the transmission of the 5.75-GBaud PS-PAM8 signal over 1-m hollow-core fibers at the W-band from 97 GHz to 105 GHz. The net transmission rate in the experiment reaches 13.63 Gbit/s, which is within the soft-decision forward error correction threshold of 2.4×10 ^-2 with a 20% overhead. The experimental results prove the potentiality of THz hollow-core fibers to be a new high-speed W-band transmission medium.