Let p∈(1,∞), q∈[1,∞), s∈R and τ∈[0,1- 1/max{p,q}]. In this paper, the authors establish the φ-transform characterizations of Besov-Hausdorff spaces BḢp,qs,τ(Rn) and Triebel-Lizorkin-Hausdorff spaces FḢp,qs,τ(Rn) (q>1); as applications, the authors then establish their embedding properties (which on BH p,qs,τ(Rn) is also sharp), smooth atomic and molecular decomposition characterizations for suitable τ. Moreover, using their atomic and molecular decomposition characterizations, the authors investigate the trace properties and the boundedness of pseudo-differential operators with homogeneous symbols in BḢp,qs,τ(Rn) and FḢp,qs,τ(Rn) (q>1), which generalize the corresponding classical results on homogeneous Besov and Triebel-Lizorkin spaces when p∈(1,∞) and q∈[1,∞) by taking τ=0. © 2010 Elsevier Inc.