用线性组合算符法、LLP变换法和量子统计的方法，研究了温度对磁场中抛物量子点内弱耦合磁极化子的影响，得到了磁极化子基态能量和基态束缚能量与量子点的受限强度、回旋频率和温度的依赖关系。数值计算结果表明，磁极化子的基态束缚能量Eb随回旋频率ωc的增加而增大，随温度参量γ的增加而减小，Eb随γ的增加而减小的幅度，不仅与γ的取值范围有关，而且还与ωc有显著关系，Eb显著变化的γ范围随ωc的增加而减小。

Quantum dot system has attracted a lot of attention as a possible candidate for the parts of an apparatus of quantum function, due to the potential applications foreground and a great deal of novel optoelectronic and transport properties.But owing to the research of electronic properties in quantum dot being very important, so more and more researchers started to study the quantum dot properties both theoretically and experimentally.However, for the convenience, in those works, people only confine themselves to discuss zero Kelvin limit condition.In fact, researching the excitation properties in low-dimension structures under finite temperature is considerably important for improving and enhancing the calorifics performance of fundamental elements.In this paper, the influences of temperature on magnetopolaron in parabolic quantum dot were studied by using the methods of a linear combination operator,LLP transformation, and quantum statistics， and the dependences of the ground state energy of magnetopolaron and the ground state bound energy to the confinement strength of quantum dot，the cyclotron frequency (magnetic field) and the temperature were obtained.Numerical calculation results illustrate that: (1) The ground state bound energy Eb of magnetopolaron increases with the increasing of cyclotron frequency.(2) Although the changes of ground state energy Eb in a magnetic field with cyclotron frequency ωc are related to the temperature parameter γ, but the change laws of the Eb for different γ as a function of ωc are similar.(3) The ground state bound energy Eb in a magnetic field decreases with the increasing of temperature parameter γ.Generally, the change of the ground state bound energy Eb with temperature parameter γ is more obvious when the temperature parameter γ is smaller, but the change of the Eb with γ is not remarkable when the temperature parameter γ is bigger.(4) The scope of the ground state bound energy Eb of magnetopolaron decreases with the increasing of the temperature parameter γ, it not only depends on the temperature parameter γ, but also on the cyclotron frequency ωc, and the γ changing range with Eb decreases with the increasing of cyclotron frequency ωc.(5)The ground state bound energy Eb of magnetopolaron increases with the increasing of the confinement strength ω0.