Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
; Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China
; Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
; Univ Alabama, Dept Phys, Huntsville, AL 35899 USA
In this paper, we test the original holographic dark energy model with some old high redshift objects. The main idea is very simple: the universe cannot be younger than its constituents. We find that the original holographic dark energy model can be ruled out, unless a lower Hubble constant is taken.