The comparative experiments of solar cell module of single crystalline silicon and trough concentrating photo-voltaic/thermal (PV/T) system of super cells were made from the thermal and electrical persectives, and the economics of these two systems were aslo analyzed with the method of “net present value”. The results indicate that the maximum output electric power of trough concentrating PV/T system is 7-10 times that of flat-plate photo-voltaic (PV) system. The PV/T system can generate heat about 2929.433 MJ per year by recycling the surplus heat of solar cell. Within the life time of 20 years, The PV/T system can acquire more surpluses and take investment cost back soon. Using concentrator for solar cell, the utilization of solar energy can be enhanced effectively with reduction in the investment cost.