In recent years, with the continuous promotion of trade union reform, the transformation of trade union cadre training becomes increasingly prominent. In the new era, the training of trade union cadres must keep pace with the time and keep innovating. In the process of trade union reform, we should complete our own reform and build up a high-quality contingent of cadres of trade unions. This paper mainly studies the positioning and characteristics of the current training of trade union cadres, and expounds how to improve the quality and level of cadre training in practice from the aspects of training system, training layout, connotation construction and information construction.