A vertebral rod connecting device includes a first connecting rod having at least one end as a joining end, in which the inner side and the outer side of the joining end near the rod end is substantially spheral shaped a second connecting rod having at least one end as a joining end, in which the inner side and the outer side of the joining end near the rod end is substantially spheral shaped a pad arranged between the two adjacent connecting rods a first connecting cup having a connection mechanism at the cup opening edge, in which the inner side of the cup bottom is at least partially substantially spheral shaped, and the curvature of the spheral shape is slightly smaller or substantially equal to the curvature of the joining end of the first connecting rod near the rod end for being universally joined with the spheral shape of the outer side of the joining end of the first connecting rod near the rod end, and the cup bottom has a through hole for allowing the rod end of the first connecting rod to extend outside from inside of the connecting cup and a second connecting cup having a connection mechanism at the cup opening edge, in which the inner side of the cup bottom is at least partially substantially spheral shaped, and the curvature of the spheral shape is slightly smaller or substantially equal to the curvature of the outer side of the joining end of the second connecting rod near the rod end for being universally joined with the spheral shape of the outer side of the second connecting rod near the rode end, and the cup bottom has a through hole for allowing the rod end of the second connecting rod to extend outside from inside of the cup, in which the connection mechanism at the cup opening edge of the first connecting cup and the connection mechanism at the cup opening edge of the second connecting cup are formed as a self connection.一種脊椎桿件連結裝置,其包括:第一連結桿,其一端為結合端,該結合端的內側及外側成球弧;第二連結桿,其結構類同第一連結桿;一墊片,用以放置於兩相鄰連結桿中間;第一連結杯體,杯體之杯口端具有連結機構,該杯體底部內側成球弧形,用以和該第一連結桿的結合端外
