To provide motor which can be easily assembled and waterproofed at low cost.

To achieve the above purpose, the motor M is provided with: a case 1 for housing an armature and a field; terminals 2 connected to the armature and facing to an opening portion of the case 1; a cap 3 attached on the case 1 so as to cover the opening portion of the case 1; a connection member 5 for connecting the terminals 2 to an external power supply unit and having a connection portion 8 with the terminals 2 covered with the case 1 and the cap 3; and a sealing member 6 provided on the end of the cap 3 and sealing the portion between the cap 3 and the case 1.