The Market Orientation concept has been intensively researched in the last years and there are evidences that it is beneficial to the companies, improving their competitiveness. This subject remits to three questions: How to plan a process of Market Orientation?, How to implement a process of Market Orientation? and Does the Market Orientation process generate a positive result to the Company?. Most researches focus on the first and third questions which means that they study the Market Orientation either at planning or implementation level. As a consequence, there is a gap concerning the second question - How to implement a process of Market Orientation?. This work intended to fulfill this gap through the identification of the main challenges, difficulties and solutions present in the Market Orientation process implementation in a family owned company. The results showed the importance of understanding the Market Orientation as a process of cultural changing in the organization and the human aspects that determine the behaviors facing this new organizational culture. Results also demonstrated the relevance of understanding the specific characteristics of a family owned company. Complementary results, future researches and managerial implications have been discussed too.