有鑑於加拿大和中國在2020年建交滿五十週年，本文回顧過去半世紀以來兩國的雙邊關係發展，並以其突顯加中關係近期的轉變。作為冷戰時期率先與中華人民共和國展開交往的國家之一，加拿大和中國之間長期享有友好關係。但隨著美中競爭在2016年後漸趨尖銳，兩國在價值觀上的落差進而牽動加拿大，放大加拿大和中國在價值觀上的矛盾，在進一步反映在新疆和香港等議題上。COVID-19疫情猶如火上澆油，無助於緩和加中關係，反而加深兩國的嫌隙，面臨反目成仇的窘境。除回顧雙邊關係以外，本文也展望加中兩國於近未來可能的發展和挑戰。

In light of fifty years of normalization between Canada and China, this article reviews the development of bilateral relations of the two countries over the past half century and examines the recent transformations in Canada-China relations. As one of the first countries to engage China during the Cold War period, Canada and the People’s Republic of China have enjoyed a long period of friendly relations. However, with the heightening of US-China competition since 2016, the gap in values implicated Canada as well by protruding the values divide between Ottawa and Beijing, which are reflected on the issues of Xinjiang and Hong Kong in turn. The COVID-19 pandemic has not mitigated the situation, but rather pushed Canada and China towards further antagonism. Besides reviewing bilateral relations, this article also considers the potential development and challenges of Canada-China relations.