Subject to space development requirements such as lightweight, miniaturization and simplication, the carbon fibre reinforced plastic (CFRP) lenticular tape spring (LTS) was practically designed through theoretical analysis, and its buckling characteristics was studied by combining finite element analysis and experiments. The bending moment computing formula for CFRP LTS under different anisotropic materials was deduced according to bending theory of thin shells, and the sensitive parameters that affect LTS's buckling characteristics were analyzed. Secondly, subject to engineering needs, a practical design on single CFRP LTS was performed and the finite element model was established to obtain the bending moment-rotation angle curves. Finally, the real object of CFRP LTS was fabricated and an experiment was conducted to study its buckling process. The results show that the critical bending moment of such CFRP LTS is 1 237.6Nmm and the maximum error is 8.7%, which is much corresponding to theoretical analysis and the results of finite element simulation, such results verifies the accuracy and compliance of the theoretical analysis and finite element simulation, provides theoretical foundations and technical supports for subsequent design and application of CFRP LTS.