Rapid technological advancements have made it possible for unmanned aerial vehicles (UAVs) to be used in a variety of applications, and since they are so mobile, UAV systems may work together to complete a wide variety of missions. UAVs have a variety of applications in both military and commercial sectors. UAVs can also be deployed in civil sectors like search and rescue operations. In recent years, UAVs were used illegally. These attacks are becoming more common and can have far-reaching consequences. As a result, associated industries and standards agencies are investigating potential solutions for protecting UAV infrastructure. Researchers have been looking for robust and secure protocols to protect UAVs from cybercriminals. However, hackers can easily exploit many vulnerabilities in the existing protocols. Therefore, it is essential to research and examines the current security protocols employed in UAVs to identify and fix their flaws. The goal of this survey is to uncover more about the secure protocol for UAV data transmission. The survey examines the existing methods described in the literature to solve the security issues that arise during data transmission between UAVs and base stations. Each protocol's advantages and disadvantages are detailed, along with suggestions for future research that could improve UAV security. Researchers and professionals in the area will find this survey a valuable resource, which provides a brief description of the secure data transmission protocols used in UAVs