Abstract: Injection moulds are divided into two types based on runner design (i.e.) Cold runner moulds and Runner lessmoulds (i.e.) hot runner moulds. In cold runner moulds, for multi-cavity and multi-point injection moulds, there is wastage of material in runner area. Sometimes wastage of material is more than component weight. For avoiding the above problem, the technique used is hot Runner moulds. Hot runner mould is one of the advanced manufacturing methods for multi-cavity type moulds. These types of moulds are commonly used for large production rate. While producing plastic components using normal/standard multi-cavitymould, we are facing theproblems like partial filling, cavities in components, less product quality, injection pressure and temperature drop age and warpage etc... To overcome these problems, hot Runner mould is designed and modeled in PROE 5.0 andtested. Then the thermal analysis is carried out to find out the thermal variations due to the injection pressure of a molten plastic into the cavities of the mold by using Simulation Technology.