The flotation process of minerals is influenced by the shape of the particle. In this paper, the glass beads and fragments are selected as different shape materials. The effect of particle shape on bubble-particle attachment behavior is investigated by the bubble-particle attachment angle tests and flotation tests. The bubble-particle attachment angle (BPA) is introduced to quantify the mass of particles. The results show that the irregular glass fragments have a lager BPA than that of glass beads. The addition of collector improves floatability of glass particles and then weakens the influence of particle shape on the BPA. The flotation results show the cumulative flotation recovery corresponds to the BPA and the addition of collector also weakens the role of the shape in the cumulative recovery. Glass fragments with shape edges can accelerate the thinning and rupture of the water film between bubble and particle and hence enlarge the BPA and flotation recovery. (C) 2018 Elsevier B.V. All rights reserved.