This paper uses a sample of matched data of firms-banks in China over the period 1999-2012 to determine the drivers of firms switching behaviour from one bank relationship to another. The findings conform to the extant literature and therefore indicate that the switching behaviour of Chinese firms is no different to firms elsewhere. The results show that the principal driver of a switching action is the credit needs of the firm and a mixture of firm and bank characteristics. The findings support the extant literature that less opaque firms are able to switch more readily than opaque firms. The results also suggest that banks that develop there fee income services are more effective in locking-in their borrowers.