The invention discloses a semi-physical simulation system and method for double-projectile coordinated attacking to double targets. The simulation system comprises a main control computer, a multi-object simulation subsystem and a multi-target simulation subsystem. The multi-object simulation subsystem comprises a first simulation computer, a second simulation computer, a first rotating table, a second rotating table, a first semi-physical part and a second semi-physical part. The multi-target simulation subsystem comprises a first target simulator and a second target simulator. A first attacking route is formed by the first simulation computer, the first rotating table, the first semi-physical part and the first target simulator, and a second attacking route is formed by the second simulation computer, the second rotating table, the second semi-physical part and the second target simulator. According to the simulation system, double-projectile coordinated attacking to the double targets can be achieved, especially the attacking to different targets at the interval time t.