Egg-type underpass bridge cast-in-place box beam support template system

The invention discloses an egg-type underpass bridge cast-in-place box beam support template system. A supporting area of a cast-in-place box beam is divided into an arc template area, a steel tube support area and a full support area; box beam end part supporting structures are correspondingly arranged in the arc template area and the steel tube support area; the box beam end part supporting structures comprise a plurality of steel tube uprights and main beams erected on the steel tube uprights; multiple template distribution beams placed in the axial direction of an underpass are erected ona corresponding main beam of the arc template area; set-shaped steel molds are arranged on the template distribution beams; multiple support distribution beams placed in the axial direction of the underpass are erected on a corresponding main beam of the steel tube support area; and supports of the steel tube support area are supported on the support distribution beams. The egg-type underpass bridge cast-in-place box beam