A groove spotlight type one-half-dimensional solar tracker comprises an azimuth angle rotation plate and a spotlight groove. The groove spotlight type one-half-dimensional solar tracker is characterized by comprising a manual spotlight groove height adjusting mechanism and a spotlight groove circular motion driving mechanism. The manual spotlight groove height adjusting mechanism mainly comprises a hand wheel screw and a hand wheel nut. The spotlight groove circular motion driving mechanism mainly comprises a worm gear and worm transmission member, a stepping motor and a stepping motor controller. Compared with a two-dimensional tracker, the groove spotlight type one-half-dimensional solar tracker is simple in structure, similar in cost and poor in performance. However, the performance of the groove spotlight type one-half-dimensional solar tracker is better than a one-dimensional tracker. The groove spotlight type one-half-dimensional solar tracker overcomes the defects that the existing two-dimensional tracker is complex in structure and high in cost. The groove spotlight type one-half-dimensional solar tracker also overcomes the defects that the one-dimensional tracker is simple in structure and low in construction cost, but the one-dimensional tracker is low in the amount of received solar energy.