The inhibition of mineralization of urinary stone forming minerals by medicinal plants i.e. Achyranthes aspera Linn, Passiflora leschenaultii DC, Solena amplexicaulis (Lam.) Gandhi, Scoparia dulcis Linn and Aerva lanata (Linn.) been investigated. The inhibition efficiency was studied. Increased intake of fruits juice and seed extract of our plants would be helpful in urinary stone prophylaxis.