Requirements for wellbore trajectory are increasing along with the continuous development of drilling technology. Normal instruments based on geomagnetic positioning has been unable to meet the accuracy requirements, so a variety of near field magnetic guide system, such as MGT, RMRS and SmartMag target instrument, etc. are developed. On the basis of the type of emission source, this system can be divided into active measurement technology and passive measurement technology. Solenoid location system belongs to active measurement technology with the advantages of small data quantity and high temperature-resistance, this technology has been commercialized abroad, but there is no much research on it in China. The paper briefly introduces the theoretical model of solenoid measurement and explains the indoor experiment and error analysis. 144 points data were measured totally with the average total distance error of 4.9% and average plane projected distance error 5.6%; the feasibility of solenoid-location system is validated preliminarily.