To provide a dimethyl ether engine capable of achieving highly efficient combustion.

The dimethyl ether engine 1 of a configuration wherein dimethyl ether as a fuel is directly injected into a combustion chamber 2 comprises an intake port 3 for supplying intake to the combustion chamber 2 in a non-swirling state, and an injection nozzle 5 with a plurality of injection holes 4 formed for injecting the fuel into the combustion chamber 2 in the non-swirling state radially so that the clearance between adjacent fuel sprays F, F is zero.