is fixed when the holographic pattern is formed, which is a flaw in the standard holographic antenna. Thankfully, this flaw has been overcome by the reconfigurable holographic surface (RHS) composed of controlled metamaterials [12]. The RHS is a compact and energy-efficient planar antenna composed of metamaterial radiation elements. The RHS can perform dynamic beamforming because the magnetic or electric bias field can intelligently modulate the electromagnetic response of the metamaterial radiation elements. Unlike traditional phased arrays, RHS produces the required radiation pattern by adjusting the reference wave's radiation amplitude, doing away with the requirement for intricate phase-shifting linkages [13]. The RHS and the RIS, employing traditional phased arrays technology, exhibit significant differences in both structure and operation. The RHS seamlessly integrates its RF front end into a PCB, facilitating transceiver implementation, while the RIS, employing traditional phased-array technology, relies on an external front end, necessitating a control link for phase-shift reconstruction. In terms of functionality, the RHS acts as a leaky-wave antenna, sequentially exciting radiation elements, whereas the RIS functions as a reflection antenna, simultaneously exciting all elements. Notably, the RHS excels as a transmit-receive antenna for mobile platforms, while the RIS finds common usage as a passive relay to extend cell coverage [14]. RHS has garnered attention because of its exceptional qualities. In the literature, people mainly investigate the hardware production [15; 16] and radiation pattern control of the RHS [13; 17]. In [16], the radiation elements of the holographic surface are fabricated with a complementary electric-LC (eLLC) resonator connected to a p-i-n diode. When the diode is in the off state, it will excite the reference wave into the object wave propagating in free space, and when the diode is on, it will be difficult to excite energy into the free space. In [17], the author established a multi-user communication system assisted by the RHS. By using holographic technology, holographic beamforming was performed by the RHS, and a hybrid beamforming scheme was proposed to improve the communication rate. People have studied the system performance of the RHS because of its precise beam steering capability and used it in multiple-access, multi-user communication; low-Earth-orbit (LEO) satellite communication; and other applications [18; 19; 20]. Recently, in [21], the author developed a point-to-point real-time data transmission platform to confirm the system's functionality and deployed the holographic surface in the radio field to actualize the holographic radio. It is evident from the experimental results that the holographic surface has a lot of potential for holographic radio. Previous scholarly research indicates that the holographic surface performs exceptionally well in enhancing communication system performance; nevertheless, research on secrecy communication has not yet been taken into consideration from the standpoint of physical layer security. In addition to proposing artificial noise (AN), an efficient method for raising the secrecy rate in traditional wireless communication systems, this work is the first to examine a secrecy communication system aided by the RHS. We added an RHS to the base station (BS), as depicted in Figure 1, to help boost the secrecy rate of legal receivers with many eavesdroppers. To address this problem, we introduce a unique hybrid beamforming method that simultaneously maximizes the secrecy rate by optimizing the holographic beamforming of the RHS and the digital beamforming of the BS. This problem is a complex-domain optimization problem subject to the real-domain amplitude constraints, which makes it different from the standard RIS-aided secrecy communication system [22]. As a result, the conventional approach does not perform well in solving this problem. New approaches are required to address this issue.