Template for underground diaphragm wall guide wall pouring and underground diaphragm wall guide wall pouring method

The invention provides a formwork for underground diaphragm wall guide wall pouring and an underground diaphragm wall guide wall pouring method, and relates to the technical field of diaphragm wall guide wall construction. The formwork for underground diaphragm wall guide wall pouring comprises a plurality of formwork bodies and a supporting assembly used for supporting the formwork bodies, the supporting assembly comprises at least one pair of clamping units and spacing adjusting units, and one spacing adjusting unit is arranged in each pair of clamping units; each clamping unit comprises a connecting rod and a plurality of clamping jaws arranged on the same side of the connecting rod, and each clamping unit is connected with the template through the clamping jaws and connected with the interval adjusting unit through the connecting rod; the distance adjusting unit can drive the connecting rods to be close to or away from each other so as to adjust the distance between the oppositely-arranged formworks. The