Abstarct: In this study, due to the reduction of fossil fuel sources and pollution caused by it, the use of new energy sources has been considered. Solid oxide fuel cells can replace fossil fuels as an environmentally friendly means of generating electricity. The type of solid oxide fuel cell tubular compared to other types due to high operating temperature, easy sealing, non-leakage of used gases and high pressure tolerance has caused more attention to researchers. In this research, a new mold design for Co-extrusion of ceramic tubular is introduced in which three different laxyers can be made with one processing step and used to micro-tubular solid oxide fuel cell. This method reduces construction costs. The optimal composition of anode paste by weight was 55.7% NiYSZ powder, 23.8% graphite powder, 15.5% deionized distilled water, 3% glycerin and 2% methylcellulose. The optimal composition of electrolyte paste by weight was 77.5% 8YSZ powder, 17% deionized distilled water, 3% glycerin and 2.5% methylcellulose. The optimal composition of cathode paste by weight was 57.05% LSM powder, 24.45% graphite powder, 14% deionized distilled water, 3% glycerin and 1.5% methylcellulose. The optimal composition of core paste was 59% by weight of graphite powder, 35.5% of deionized distilled water, 2% of glycerin and 3.5% of methylcellulose. To investigate the effect of sintering temperature on the average wall thickness, hardness and flexural strength, the samples were sintering at 1350°C. In order to study the surface morphology and microstructure and to study the porosity, FESEM test was performed. The test results showed that by using the Co-extrusion process at 1350°C, it is possible to produce three-laxyer microtubular with an average wall thickness of 388±23 µm, which has a flexural strength of 25±4 Mpa and a hardness of 746±4 Mpa in the anode laxyer, 2031±3 Mpa in the electrolyte laxyer and 604 ±5 Mpa in the cathode laxyer.