The invention discloses a lens greenhouse light target linked solar collecting device. The lens greenhouse light target linked solar collecting device comprises a greenhouse support and a greenhouse frame. The support and the frame form the skeleton of the greenhouse. The frame is provided with a roof. The roof is spliced by a long-strip Fresnel lens. A light target is arranged below the frame. The Fresnel lens corresponds to the light target. The sunlight forms a spotlight zone through the Fresnel lens to be focused on the light target. The light target is arranged on parallel supports. Each of the parallel supports comprises a warp slide rail. Both ends of the light target are fixed on the warp slide rail. The warp slide rails are arranged on the fixed frame and are connected with the fixed frame through guide rail pairs. Weft slide rails are arranged below the fixed frame. The weft slide rails are connected with the fixed frame through the guide rail pairs. A sunshine tracking mechanism is connected with the roof, the light target and the parallel supports respectively. The parallel supports moves in the warp and weft directions under the action of the sunshine tracking mechanism so that the light target can track the spotlight zone of the Fresnel lens.