A horizontal well logging safety cable head is applied in the oil-field horizontal well safety logging. The cable head is characterized in that a cone of an upper end of a rope cap is provided with an axial center hole; a stepped center hole is arranged in the rope cap; an armoured cone whose outer wall is in a stepped cylinder shape is arranged in an upper top of the stepped center hole of the rope cap; a armoured three-piece unit is in the armoured cone; bolts are uniformly distributed on a wall of the rope cap along a circumference direction; inner ends of the bolts are arranged on the outer wall of the upper end of the armoured cone; a connection cylinder is arranged in the center hole of a lower end of the rope cap; shear pins are uniformly distributed in an annular groove of the rope cap; the inner ends of the shear pins are riveted into pin holes of the outer wall of the connection cylinder respectively; a transverse separating wall is arranged on the lower end of the center hole of the connection cylinder; the transverse separating wall of the connection cylinder is provided with the center hole; a single-core sealing column is fixed in the center hole of the transverse separating wall of the connection cylinder. The cable head has the advantages that the cable head can be connected with a horizontal well test apparatus and be used for the horizontal well test; a logging parameter can be safely, reliably and stably transmitted; a cable pulling force and bottom hole pressure can be borne.