The invention discloses a cylindrical cable net reflection system driven by three telescoping rods, aiming to solve the problems that a reflection system in the prior art is large in intensity and complex in structure. The cylindrical cable net reflection system includes a net surface cable (1), a fastening cable (4), a center column (6), an expandable outer circular ring unit (7), an upper platform (8), the three telescoping rods (10), a lower platform (12), and a support platform (13), a feed source (5) is arranged at the top of the center column, the center column and the outer circular ring are connected through upper and lower support cables (2), an adjusting cable (3) is connected between the net surface cable and the fastening cable to control the deformation of the reflection plane by changing the length, the upper ends of the three telescoping rods are connected with the upper platform through a spherical hinge connection structure (9), the lower end is connected with the lower platform through a revolute pair connection structure (11), and by changing the length of the three telescoping rods, the attitude control of the reflection device is realized. The reflection system is simple in structure, portable and flexible, accurate in attitude control, and can be used for the reflection or convergence of optical and electrical energies.