Support bracket for power unit

A support bracket (12) that supports power unit (10) includes a first bracket (20) and a second bracket (30). The first bracket (20) includes a support platform (21) to which a support member (11) that supports the power unit (10) is attached and a first wall surface (22) that is coupled to a lower frame member (3) of an engine room (2) of a vehicle body (1). The second bracket (30) includes a second wall surface (31) that is coupled to an upper frame member (4) of the engine room (2). The first bracket (20) and the second bracket (30) further include a coupling surface (40) that couples these brackets together and that can allow relative displacement between the first bracket (20) and the second bracket (30).