The invention discloses a lower supported hanging basket in bridge construction and application thereof. The invention is characterized in that: the lower supported hanging basket is provided with two primary trusses having inverted trapezoidal structures, and an upper chord shoring jack is arranged between the tail of an upper chord and the bottom surface of a box girder edge board; an upper rear suspender is arranged between the middle of the upper chord and an upper rear crossbeam; the front end of the upper chord is connected with an upper front crossbeam; a lower rear suspender is arranged between the middle of a lower chord and a lower rear crossbeam; the upper front crossbeam is connected with a lower front crossbeam through a front suspender; parallelly arranged bottom basket longitudinal beams are fixedly connected between the lower front crossbeam and the lower rear crossbeam; and a hanging basket bottom die is fixedly arranged on the bottom basket longitudinal beams, and hanging basket side dies are positioned on the inner side of the two primary trusses. The hanging basket travelling mode is improved, a bound framework of steel reinforcement can be integrally hoisted into a bottom die platform space and directly subjected to concreting operation, and the construction period is shortened.