Abstarct: The purpose of shear friction theory is to provide design methods for conditions where shear transfer should be considered: an interface between concretes cast at different times, an interface between concrete and steel, reinforcement details for precast concrete structures, and other situations. In the last decades, numerous experimental studies have been carried out to study shear transfer at a cracked plane in reinforced concrete (RC) members. It is found that the behavior of shear transfer is mainly governed by concrete strength, dowels steel across the interface, concrete density and interface roughness. This study attempts to rationally predict the variation of shear stress against slip, crack opening and cracking pattern at the interface of new and old concrete using finite element model. Although earlier experimental studies have been carried out to identify the role of different parameters on the ultimate shear strength, there are no reliable numerical model for studying the shear friction capacity. The other aim of this study is to improve insight into the characteristics between the shear stress and slip for a range of design parameters, such as concrete strength, percentage of dowel steel and variation of reinforcement orientation on RC members. Finite element models were developed using ABAQUS software to simulate push-off tests. The models were calibrated using experimental results published in literature. Parametric studies were then carried out to generate data with the consideration of different combinations of the structural design parameters i.e. concrete compressive strength, percentage of dowel steel and orientation of reinforcement. Results indicate that increase in concrete strength and reinforcement ratio directly enhance the shear strength.