Abstarct: This study aimed to demonstrate the possibility of using SRR-baxsed mextamaterials to reduce the absorption of electromagnetic energy in human head tissue. In fact, in this dissertation, a small and superficial mextamaterial design has been used to reduce the absorption of mobile phone waves in the head tissue. The reduction of SAR was evaluated by two types of SRR with thin wire and without thin wire at 900 MHz frequency for Helix antenna and PIFA antenna at 900 and 1800 MHz frequencies. The reduction in SAR due to a mobile phone with a helix antenna at a frequency of 900 MHz by SRR without thin wire is 38.49% and by SRR with thin wire is 26.28%. However, the dimensions of SRR with thin wire are 46% smaller than SRR without thin wire. The reduction rate of SAR due to telephone with PIFA antenna by SRR without thin wire, at the frequency of 900 MHz is 55.29% and at the frequency of 1800 MHz is 64.38%. The reduction rate of SAR due to telephone with PIFA antenna by SRR with thin wire, at the frequency of 900 MHz is 23.25% and at the frequency of 1800 MHz is 59.25%. In addition, the dimensions of SRR with thin wire are smaller than 54.87% and 48.78% at 900 and 1800 MHz, respectively, than the dimensions of SRR without thin wire.