Nanotubes have a great importance in the rising of nanotechnology. Carbon nanotubes are widely used and many works have been done about it. As the technology always need better materials with better properties, scientist have developed Carbon nanotubes to Silicon carbide nanotubes. In this work, the stability of the Silicon nanotube is investigated in the buckling case. Its stability has an important role since it is used in high-tech equipment. In this article, the buckling analysis SiCNT is investigated by using Euler-Bernoulli beam theory for different boundary conditions. Results are presented in figures and table.