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Abstract: Based on a brief retrospect of the method in establishing T g of the bulk metallic glasses (BMGs), some perplexities concerning this are pointed out. With the experimental results of Zr–Al–Ni–Cu–X (Nb,Ti) BMGs, a electrical resistivity method is proposed to determine the glass transition temperature of BMGs. With the method, we define two kinds of characteristic temperature related to the glass transition, T g-dep and T g-int, respectively. By comparing T g-dep and T g-int with T g determined by the DSC method, we have found that, for the same alloy at the same heating rate, T g-dep is very close to T g-onset while T g-int is approximate to T g-mid. As a method to determine the glass transition temperature, the electrical resistivity method has proved to be more convenient and practical in comparison with the DSC method, especially when the DSC curve cannot show the glass transition character of BMGs. In addition, we would emphasize that when we refer to T g, it is necessary to expatiate on the way of denoting the glass transition temperature, such as T g-dep or T g-int (T g-onset or T g-mid), and on the heating rate, in order to avoid ambiguity. [Copyright &y& Elsevier]