Wood-plastic composites (WPCs) have attracted much attention in recent decades due to their competitive cost, great processability and excellent physical performance. Also, some of their main applications are represented by outdoor decking and furnishing. Since they are mainly applied to outdoor places, it is very important to evaluate the degradation behavior of WPCs under UV irradiation and moisture exposure, which are the major natural weathering factors. The chief aim of this research is to recycle waste-WPC(W-WPC) collected after use. However, such a W-WPC is inevitably deteriorated properties. In order to overcome these problems, virgin-WPC(V-WPC) was prepared with the same recipe as that of the original WPC. Five different blends were designed with different proportions of W-WPC and V-WPC. Each of the blends was prepared using extrusion and injection moulding, and then it was subjected to analyze various characterizations. The evaluation of weathering behavior by accelerated artificial weathering was carried out according to ASTM D2565 and total 1000 hours of exposure time was applied to test specimens using the Weather-O-Meter(WOM) equipment. Tensile, flexural properties, and impact strength of the specimens were tested at each 250, 500, and 1000 hours after accelerated weathering. The morphology of the weathered surface was observed by scanning electron microscope(SEM). From this study, a certain corelation between mechanical and morphological properties that occurred during accelerated weathering of W-WPC/V-WPC blends were established.