Fixing structure for fuel injection nozzle

A nozzle fixing structure which fixes a fuel injection nozzle is used in an engine having a cylinder block and a cylinder head (11). The nozzle fixing structure includes a nozzle pressing arm (14) having a through hole (14a), which fixes a fuel injection nozzle (13); a fixing bolt (15) which is passed through the through hole (14a) in the nozzle pressing arm (14) and tightened to the cylinder head (11); and a cylinder head bolt (20) which is passed through the cylinder head (11) and tightened to the cylinder block. The nozzle pressing arm (14) includes a pressing part (14A) formed on one side of the through hole (14a) and causing a load to act on the fuel injection nozzle (13); and a supported part (14B) formed on another side of the through hole (14a) and constituting the pivot part (21) for the nozzle pressing arm (14) together with the upper end (20c) of the cylinder head bolt (20).