<p>A submersible linear motor for oil well comprises a stator (1) and a mover (2) which moves in a linear style in the stator. The stator includes a stator inner pipe (11), a stator outer pipe (9) sleeved out of the stator inner pipe and multiple silicon steel rings (15) and coils (14) formed between the stator outer pipe and the stator inner pipe and arranged along their axial direction. A solid insulation material is filled between the stator outer pipe and the stator inner pipe.</p>
