Madagascar among less advanced countries in a precarious situation has benefited aids from many donors, bilateral and multilateral, traditional or new ones, to finance its development program implementation.Since its independence, it has not stopped receiving such public aids for development. However, no improvement has occurred up to now. In 2005, the adoption of the Paris Declaration during the High Level Forum by the Development Assistance Committee (DAC-OECD) established a new political orientation based on promoting harmonisation and coordinating aid policies to ensure efficiency of all actions for a sustainable stability and development. Being aware of the challenges to take up, Madagascar enrolled in the process of ensuring the politics and practise harmonization consistency. It is one of the fifty countries that adopted and signed for this declaration. The above political orientation had to provide a breath of fresh air and recommends to the technical and financial partners (PTFs) to really unite and work together so that aids could be an actual development tool and no more a problem for the beneficiary country. The last Busan Aid Effectiveness Declaration in 2011 still emphasizes this aspect .Therefore, since 2005, the malgache government with the support of all its PTFs, donors, has decided to put an agenda in place for the 2015 horizon. This agenda, a sort of roadmap, fixes the important steps that the players should follow to establish harmonized and coordinated managing mechanism of the public development aids. It is a partnership incentive between donors and government that the latter tries to establish. Those actions began with the reform implementation to make the national system reliable and to win back the PTFs’ confidence. Therefore, the implementation of the coordinating entity and the mechanism of national monitoring survey joint with public policies and external aids has been processed. Simultaneously, at each sector’s level, the approach adaptation has been searched to be in agreement with this new political orientation. In practice, these processes are not easy to carry out and some difficulties are politically and technically experienced. This engenders disorder in the national aid mapping and suspicion in the application of the five consistency principles: Ownership, Alignment, Harmonisation, Managing for results and Mutual accoutability known as harmonisation.The instability caused by the 2009 crisis occurrence has slowed down the well engaged process despite the promising results. In fact, the 2010 DP implementation survey evoked a performance decrease if compared to that of 2008. The search for complementary feature, for synergy between financial donor(s) with politics appropriation as a factor in the success are the challenges. Knowledge keeping would be important to prevent from regression and coming back to the old practices that are not adapted to the international cooperation for the development . In the same way, the malgache authority should more focalize their attention to the way how to regain the national development players’ and the donors’ trust.