The utility model provides a cable protection device of latent oily charge pump. The utility model discloses cable protection device of latent oily charge pump, including protector, submersible motor, little flat cable, the one end and the motor pin connection of little flat cable, upper end one side fixed mounting of submersible motor casing has little flat cable head, installs protection device between submersible motor casing upper end and protector lower clutch, following the axial in the protection device and being provided with the recess, little flat cable is located the recess. The staff neck department that protection device's upper part of the body and the bolt fixed connection that the lower part of the body passes through both sides, hole that the upper part of the body after the connection and the lower part of the body are formed installed tip under the protector lower clutch, the upper part of the body after the connection and the radial maximum radius size of outer circumference of lower part of the body component equal or are lighter than the radius of latent oily charge pump unit, the recess sets up last internal. The beneficial effects are that simple structure, reasonable in design, the oily charge pump in -process of down going into to dive in horizontal well, highly deviated well can effectively protect little flat cable not receive the damage, improves the oily charge pump of the diving success rate of once going into the well, improves production efficiency.