Construction method for retaining wall of post-cast strip

The invention discloses a construction method for a retaining wall of a post-cast strip. The construction method comprises the steps of judging whether rigid conditions of the construction method for the retaining wall of the post-cast strip exist or not, determining an occupied position according to an actual position and a design position of a garage or a main building, selecting a fixed template with a specific size according to an actual condition, then fixing a specific steel bar on the fixed template, finally, fixing the fixed template to a construction position through screws, and performing semicircular masonry through sand-lime bricks according to a drawing. According to the construction method, the semicircular space is larger than that of a conventional method, during soil backfilling, the upper protection is not in place, plain soil or other garbage falls into the post-cast strip, personnel can conveniently enter the post-cast strip to clean the post-cast strip, the semicircular space is arch-shap