Abstract: On the basis of analyzing three kinds of wireless position methods,the paper indicated the TOA position method could provide higher position precision,which had certain feasibility used in underground.And aiming at the problems that TOA position method had limited time resolution and could not meet with the demands used in underground,it proposed a frequency-domain super-resolution TOA position algorithm based on subspace decomposition and MUSIC algorithm.At last it used the algorithm to simulate the two typical conditions of OLOS and LOS between sending antenna and receiving antenna.The result showed that the frequency-domain super-resolution TOA position algorithm can improve time resolution and achieve higher position precision under the condition of low SNR,which is suitable for underground personnel position.