Disclosed is a flexible surgical instrument system, comprising a flexible surgical instrument (10). The flexible surgical instrument (10) comprises a flexible continuous body structure consisting of a distal structural body (11), a proximal structural body (16) and a middle connection body (15). The distal structural body (11) comprises distal structural segments (12, 13), the distal structural segments (12, 13) each comprising a distal spacer plate (121, 131), a distal fixed plate (122, 132) and a structural bone (123, 133). The proximal structural (16) comprises proximal structural segments (17, 18), the proximal structural segments (17, 18) each comprising a proximal spacer plate (171, 181), a proximal fixed plate (172, 182) and a structural bone (173, 183). The middle connection body (15) comprises a channel fixing plate (152) and a structural bone guiding channel (151). Structural bones (123, 133) on the distal structural segments (12, 13) are fixedly connected to the structural bones (173, 183) on the proximal structural segments (17, 18) in one-to-one correspondence or are the same structural bone. One end of the structural bones (173, 183) is fixedly connected to the proximal fixed plates (172, 182), and the other end thereof successively passes through the proximal spacer plates (171, 181), the structural bone guiding channel (151) and the distal spacer plates (121, 131), and is then fixedly connected to the distal fixed plates (122, 132).L'invention concerne un système d'instrument chirurgical flexible comprenant un instrument chirurgical flexible (10). L'instrument chirurgical flexible (10) comprend une structure de corps continu flexible constituée d'un corps structural distal (11), d'un corps structural proximal (16) et d'un corps de connexion intermédiaire (15). Le corps structural distal (11) comprend des segments structurels distaux (12, 13), les segments structurels distaux (12, 13) comprenant chacun une plaque d'espacement distale (121, 131), une p