"It is unfortunate that China has arbitrarily and unfairly detained two Canadian citizens," he told reporters in the western Canadian city of Regina in Saskatchewan.
The two Canadians were held last month after the arrest of Meng Wanzhou, the chief financial officer of Huawei Technologies Co, in Vancouver on Dec. 1.
In an article in the Ottawa-based Hill Times newspaper on Wednesday, Ambassador Lu Shaye said Canada's demands for the release of the two men reflected "double standards" born of "Western egotism and white supremacy".
Trudeau, asked about the comments, said Canada had simply acted in accordance with the rule of law. Meng has been released on bail and is living in her Vancouver home awaiting further extradition proceedings."Canada is a country of the rule of law. This is something that we know and we value," Trudeau said. "We have a justice system that is not subject to political interference."