Stellar Observations Network Group, SONG, is a Danish led international collaboration project to construct a global network of small 1m telescope around the globe. The second 1 meter SONG node telescope designed by NIAOT is installed at Delingha site in west China.TCS hardware is based on PC, UMAC, tape encoder, motor and driver. TCS software is developed in powerful Qt Creator environment under stable Debian 6.0 operation system. The design rules are modularity and simplification. Several software modules work together to realize telescope usual function . Tracking algorithm is comprised of two parts. One is UMAC motion program, another is tracking thread in PC program. Communication between TCS and OCS is complicated. The method to process remote command is described.