Abstract: The new method with solid fluidization exploitation of natural gas hydrate (NGH) and the new technology with jet flow mining crushing provide new ideas for the potential commercial exploitation of non-diagenetic NGH in seabed shallow layer, and the key point in commercial exploitation is to increase the mining efficiency, and furthermore the mining device guide is the essential technology, which determine the NGH commercial exploitation efficiency. For rotary steering, soft-bodied robots and continuous mechanical arm technology, the relevant guide technology applied to applicability evaluation of NGH mining are carried out, which demonstrates the feasibility of the guide tool of continuous tube with ultra-short radius and the technology of near-bit guidance robots with hydraulic jet mining. Based on this, the scientific problems of existing guidance technology applied to the mining guidance of seabed shallow NGH are proposed, which contain the stability of formation and borehole wall, equipment dimensions restricted by well diameter, the diversion of high curvature, in-situ real-time detection, the map construction of mining regional NGH reservoir and path planning of the unexploited area. Furthermore, the future potential development directions of research on the light weight, small size, high flexibility, high strength of mining guide devices and the real-time monitoring and evaluation of NGH reservoir location are put forward.