Abstract: Borehole methane discharge initial velocity is one of the usual prediction indices of coal and methane bursting,but for this method,shallow prediction depth seriously district mining and driving speed.In order solve the problem,RS-1 flexible deep-hole measurement equipment of methane discharge initial velocity was developed.Its structure and operating principle was introduced.Hole sealing capsule of this equipment was designed and manufactured.Laboratory and on-the-spot test showed that this equipment could measure methane discharge initial velocity and effectively improve borehole depth.