The present invention provides a principally novel method and a device for percutaneous electrical nerve stimulation and electro-acupuncture. It consists of inserting the needles/electrodes into the prescribed acupuncture/trigger points at slant angles so that the external parts of the needles/electrodes can be secured against the skin of the patient. Although the present method allows for usage of different types of percutaneous electrodes and perpendicular insertions, as long as the external parts of electrodes are in flush with the patient's skin, angular insertion of the needles/electrodes has significant advantages. First, the inclined position of the needle provides distribution of current over a larger area of the patient's skin since the inserted part of the needle is longer in the inclined position that in the perpendicular position. Second, as the projecting part of the needle is secured to the surface of the skin, a patient is not restrained by the needles and may have freedom of motion. In other words, after insertion of the needles the patient may leave the clinic and may not be bound to the clinic during subsequent usage of the device.