Abstract: The temperature dependences on the properties of strong-coupling bound magnetopolarn in a quantum dot are studied using the linear combination operator and the unitary transformation methods.The relations of the vibrational frequency,the ground state energy,and the mean number of phonons of the strong-coupling bound magnetopolaron in a quantum dot with the temperature are derived.Numerical calculations,for the RbCl crystal as an example,are performed,and the results indicate that the vibrational frequency,the ground state energy and the mean number of phonons of the strong-coupling bound magnetopolaron in a quantum dot increase with the increase of the temperature.The ground state energy increases with the increase of the confinement strength of the quantum dot

Key words: quantum dot, strong-coupling, bound magnetopolaron, temperature dependence