The invention relates to a cast-in-site watery concrete stand template and its constructing method, where the seat platform and seat-back
stile are encircled with seat platform
bed template panel, seat back
stile's up-front vertical surface hanger template, seat back
stile's down-front vertical template panel, rear vertical template panel and seat back stile's
bed template panel, and the position of the ventilating hole is pre-buried with PVC
pipe; the external angle position is equipped with an circular-arch chamfered external angle die strip plate; a triangular strip is
cut off outside the bottom end of the seat back stile's up-front vertical surface hanger template in the internal angle position; horizontal secondary
keel and vertical primary
keel are used to support the back of each template panel; the primary
keel is supported on support beam, the support beam is arranged on the support beam body; the primary keel of the hanger template hangs and is supported by temporary vertical support, and wall-passing bolt runs in order through the primary keel of the hanger template, seat back stile's up-front vertical surface hanger template, ventilating hole, rear vertical template panel and the primary keel of the rear vertical template panel and is fastened. And the invention advances constructing schedule, assures construction quality and besides, reduces
engineering cost.