Enterprises Merger & Acquisition(M&A) are very common in the current world. Although there have been many successful cases, the difficulties are always seen during the process, for instance, the different brands and cultures are the greatest blocks they had to face up after the integration. Recently, a successful case of M&A of three brands has been conducted in France, The merger of Volvo Trucks with Renault Ⅵ and Mack created a new heavy goods vehicles group. Maybe we can learn something f rom the Three-brand integration. --Editor Although there have been many successful cases, the difficulties are always seen during the process, for instance, the different brands and cultures are the greatest blocks they had to face up after the integration. Recently, a successful case of M & A of three brands has been conducted in France, The merger of Volvo Trucks with Renault Ⅵ and Mack created a new heavy goods vehicles group. Maybe we can learn something f rom the Three-brand integration. --Editor