Abstract: The low stability of 1-Methylclopropene (1-MCP) as an receptor inhibitor for ethylene was investigated for improvement. An inclusion complex, 1-MCP synthesized with β-Cyclodextrin (β-CD), was therefore prepared through solubilization utilizing the unique special structure of β-CD, i.e., internally hydrophobic and externally hydrophilic. In the inclusion complex, the β-CD can play the role in improving the stability with the penetration guest molecule. The inclusion complex was characterized by X-ray powder diffraction (X-RPD), differential thermal analyzer (DTA) and UV/IR absorption spectrometry. The difference between β-CD and the inclusion complex was found by spectral comparison and analysis, which verify the formation of the inclusion complex.