The present invention relates to a thyroid nodule model which comprises a simulation human body upper half module and a simulation thyroid nodule module. The simulation thyroid nodule module is arranged at the corresponding human body structure position of the simulation human body upper half module and is formed by a biomimetic thyroid housing, an electroluminescent telescopic bodies and a control circuit board, wherein the electroluminescent telescopic bodies are arranged in the biomimetic thyroid housing side by side in an array arrangement, the control circuit board comprises a plurality of control circuits corresponding to the electroluminescent telescopic bodies in the array arrangement, the control circuit board also comprises a control circuit program editing module, through controlling different electroluminescent telescopic bodies at different positions in the array and the different degrees of stretching of the electroluminescent telescopic bodies, thus different positions of the biomimetic thyroid housing are raised in different degrees to simulate the thyroid nodules of different positions and different degrees, a simulation effect is realistic and can be used repeatedly, the model is used for training medical students to carry out observation and palpation training of the thyroid nodule, and the teaching effect is improved.