Fuel injection controller of engine

Disclosed is a fuel injection controller for an engine wherein an increase in combustion noise or a deterioration in exhaust gas performance due to inter-cylinder correction is prevented, and temperature rise performance of a diesel particulate removal device is prevented from deteriorating. The fuel injection controller for an engine comprises an inter-cylinder correction amount calculation means (5) which calculates, for each cylinder, an inter-cylinder correction amount for correcting by increasing/decreasing a fuel injection amount in each cylinder according to the difference in engine rotation speed between cylinders, an inter-cylinder correction amount division means (6) which divides an inter-cylinder correction amount into a first divided inter-cylinder correction amount for correcting by increasing/decreasing the basic injection amounts of main injection and sub-injection and a second divided inter-cylinder correction amount for correcting by increasing/decreasing only the basic injection amount of main injection, a first correction means (7) for distributing the first divided inter-cylinder correction amount to main injection and sub-injection according to the basic injection amounts thereof, and a second correction means (8) for adding the second divided inter-cylinder correction amount to the basic injection amount of main injection.