The invention provides an automatically-clamped solar tile, and belongs to the field of house building materials. The automatically-clamped solar tile comprises a tile ridge, a water channel, a partition wall, a clamping ring and a clamping head; the semicircular-arc-shaped tile ridge has a certain thickness; the semicircular-arc-shaped water channel is fixed to one side of the tile ridge; the tile ridge is in waterproof connection with the water channel; the circular arc radius of the tile ridge is larger than that of the water channel; the partition wall is fixed on one side of the water channel; the clamping ring is arranged on the partition wall; the clamping head is arranged in the side opposite to the connection side of the tile ridge and the water channel; the length of the tile ridge is smaller than or equal to that of the water channel.