Transfer structures in recent years have been well used in building structures. In this paper a new type of beam transfer structure with haunching braces is presented. Push-over analysis on an example structure against the new reinforced concrete transfer frame with haunching braces is conducted. The development feature of the plastic deformation of the structure and the responses of the acceleration and displacement during elasto-plastic stage of the structure are discussed. The seismic performance of the structure is evalated using Capacity Spectrum Method. The results show that the height of the section of the transfer beam with haunching braces should be selected between 1/10~1/8 of span, combined with the position of haunching braces and the upper loading. The seismic performance point of the example structure firstly appears at the ends of ordinary frame beams, indicating that proper design can ensure seismic safety of the transfer structure. It can provide reference for engineering practice.