Currently, Halloysite nanotubes (HNT) seem to be very promising nanoaditives with the great potential of application across the field of polymer science. The reason is that the physical influences of HNT in polymer nanocomposites are slightly similar to the effects of Carbon nanotubes (CNT). However, between these types of nanoparticles can be identified two major differences. Firstly, HNT is naturally abundant material, which does not have a potential risks to the environment, as is the case with CNT. Secondly, the price of HNT is in orders of magnitude cheaper than CNT. Therefore, in those applications, where CNT do not entirely comply with the requirements or regulations, HNT might be used as a suitable substitution. Accordingly, the aim of this paper is to investigate the influence of HNT on the dielectric properties of LLDPE (linear low density polyethylene) nanocomposite compounds in the different level of fulfillment (0, 1, 3, 7 wt%). The utilization of these HNT/LLDPE nanocomposite compounds can be seen in the cable industry, where the dielectric properties are essential. Used experimental compounds have been prepared in the laboratory blades mixer Brabender W50 EHT and the plasticorder Brabender PLE 651. Immediately after mixing, the molten compounds were removed from the mixer and inserted into the spacer and pressed into films of 0.25 mm thickness. Dielectric properties in the DC field (reading of polarization index, volume resistivity) of the individual samples were measured and the temperature and frequency range by Broadband dielectric spectroscopy Alpha-A (Novocontrol) were investigated. Samples have been subjected to the dielectric strength test according to standards. Results show, that HNT have affected the dielectric relaxation phenomena of the samples, when during the increment of the level of fulfilment occurred the increasing of the nearly lossless dielectric relaxations. The volume resistivity of the samples were affected in the range of one magnitude.