The aim of this research was to study the effect of fine dune sand on the mechanical performance of Eco-Self-Compacting Concrete (SCC). For that, the fine dune sand of the Western erg (Taghit -Algeria) was being like mineral addition to formulate the SCC, and a comparison was carried out on their effect on the properties of SCC. Our study also showed that the substitution of fine dune sand (DS) by cement in the composition of the SCC, contributes to a slight variation of workability in the fresh state parameters still remaining in the field of SCC required by the AFGC recommendations. The experimental results show that the compressive strengths and modulus of elasticity of SCC improved by substituting of 20% cement by DS.