Discourse reading teaching is an important element in teaching business English reading. Since business reading covers a wide range of professional business English, students find it difficult to understand even though they might have a good command of English. Basic knowledge of business, knowledge of business discourse and reading strategies are required to facilitate the reading comprehension. This paper proposes the use of mind map in teaching business English discourse reading to improve students’ reading strategies and comprehension in business English. Before reading, mind map is adopted to clearly display the required background information to complement or stimulate students’ existing schemata; during reading, mind map is a scaffold to guide them in reading with discourse strategies, such as selecting the key information, finding the thread of the discourse and etc.