An adjustable vertebral spacer includes a spacer body, a movable member coupled to the spacer body, an adjustment ring mounted on the spacer body and rotatable to move the movable member and to further adjust the combined height of the spacer body and the movable member, a lock ring mounted on the spacer body for locking the movable member to the adjustment ring, and a top endplate coupled to the movable member at the top and tiltable to fit the angle of the adjacent upper vertebral body during surgery operation.本案係一種可調式人工脊椎之椎體支架,其係由一本體,一調整環,一活動件,及一止動環所組合而成,俾藉由旋轉調整環,使其沿著本體移動,進而調整該活動件與本體之間的相對高度,接著旋轉止動環,使其朝向調整環移動,俾與調整環共同包夾活動件位於導槽側向伸出之導榫,從而獲致高度調整及固定。尤有進者,本案進一步包括一上接觸端板,其係樞接於活動件之管內空間頂部呈可擺動狀,以便因應相鄰錐體之傾斜角度,從而獲致傾斜角度調整。