We present a new indoor location technology based on infrared weaving.By employing pairs of infared transmitters and receivers weaving signal network to cover the target space,the approach can achieve accurate location.Moving objects need no auxiliary equipment.The maximum distance in infared weaving can reach 30m and the error is below 0.05m.And the system shows good stability.Compared with the other indoor location technologies,users are able to set up the number of infrared receivers without changing the previous structure and operating mode when locating changed space,and the location accuracy remains unchanged.The system shows good flexibility,high stability and nice adaptability.