Construction method of sloping surface runoff field

The invention discloses a construction method of a sloping surface runoff field, which comprises the following steps of: 1) arranging mutually parallel upper and lower water stopping walls (1) and (5) along the slope trend from the upper side to the lower side respectively, and clamping a left water stopping wall (2) and a right water stopping wall (3) mutually parallel between the upper water stopping wall (1) and the lower water stopping wall (5) to form a parallelogram frame; 2) arranging a left water stopping soil block (21) and a right stopping soil block in the parallelogram frame; 3) embedding a runoff collection tube (4) in the parallelogram frame, wherein fluid flowing along the sloping surface in the parallelogram frame can flow into the runoff collection tube (4) from a bar gap (41); and 4) communicating the runoff collection tube (4) with a runoff collection well (7) by using a water pipe (6). The sloping surface runoff field constructed by the method can fully collect runoff in the sloping surfac