The invention discloses a formwork trolley for tunnel side wall secondary lining pouring and arch crown precast segment transferring. The formwork trolley comprises a formwork trolley body, a side wall formwork mechanism is arranged on each of the left side and the right side of the formwork trolley body, a longitudinal joint end mold mechanism is hinged to the top of each side wall formwork mechanism, and a power unit is arranged between each side wall formwork mechanism and the trolley body and is used for controlling the corresponding side wall formwork mechanism to move or retract in the direction of a side wall of a tunnel. According to the formwork trolley, in the tunnel side wall secondary lining pouring process, a pouring space for a side wall secondary lining is formed among eachlongitudinal joint end mold mechanism, the corresponding longitudinal seam end mold mechanism, a tunnel secondary lining inverted arch and the surface of the corresponding tunnel side wall; and installation is convenient by splicing longitudinal joint end mold devices, and the formwork trolley can also be used for transferring the arch crown prefabricated segment.