Provided is a surgical robotic system (1), comprising a modular structure and a manipulator structure. The modular structure comprises a base structure (10), a supporting structure (11) connected with the base structure (10) and a suspension structure (12) connected with the supporting structure (11). The manipulator structure (13) is connected with the suspension structure (11) in the modular structure. The modular structure comprises at least two degrees of freedom. The modular structure is simple in structure and small in size, and through the optimized modular structure and the manipulator structure (13), the adjustment of the manipulator structure (13) can be completed more conveniently, the movement space of the manipulator structure (13) is expanded, and the possibility of collision of each manipulator structure (13) during the movement is reduced and/or inhibited, thereby improving the safety, convenience, comfort or functionality of the minimally invasive surgical robotic system.