Teaching practice plays an important role in preparing future teachers. More and more countries pay attention to teaching practice in teacher education and take measures to improve the system of teaching practice. This paper examines the characteristics of teaching practice through the perspective of comparative analysis, comparing the situations in China, the UK and the USA. The different characteristics are presented, particularly in the goal of teaching practice, the duration of the internship and the cooperation system among education administration departments, universities, and schools. Some suggestions are proposed to improve teaching practice generally based on experience of these three countries. As such, it provides insight into practice for policymakers and academics in the field of teacher education.