Propagation field and propagation method of stream giant salamanders

The invention relates to a propagation field and a propagation method of stream giant salamanders. A stream at the front end is introduced into the propagation field; the propagation field comprises aplurality of propagation areas; the propagation areas are connected in series; a grid is arranged between each two adjacent propagation areas; each propagation area comprises activity areas; the activity areas are arranged in a straight line along with the water flow; the two sides of each activity area are provided with a plurality of pit holes; the horizontal cross section of each pit hole is of a circular structure; the openings of the pit holes of the two sides are arranged at one side; and a sand soil layer is arranged at the bottom of each pit hole, wherein the sand soil layer is located underground, and an observation port is arranged at the upper end of the pit hole. The number of pit holes is even, and the pit holes are arranged symmetrically at the left and right sides. A sunshade net is also arranged a