The invention discloses a zero-pressure-damage two-way high-speed explosion stop device for pipelines, belongs to the technical field of gas conveying safety protection, in particular, relates to a gas pipeline explosion stop device, and provides a device with millisecond closing, pneumatic returning, full-size zero pressure damage and two-way stop of the explosion propagation. The zero-pressure-damage two-way high-speed explosion stop device for pipelines comprises an energy storage mechanism, a cylinder block actuator, an explosion stop gate valve, an instant opening valve, an opening valveA, an opening valve B, a needle valve A and a needle valve B; the energy storage mechanism communicates with the cylinder block actuator through a pipeline; the instant opening valve is arranged on apipeline; the explosion stop gate valve is fixed under the cylinder block actuator; the opening valve A is arranged on a pipeline between the energy storage mechanism and the instant opening valve; the opening valve A is arranged in the connected place of the cylinder block actuator with the explosion stop gate valve; the needle valve A is arranged in the connected place of the cylinder block actuator with the pipeline; the lower rend of the cylinder block actuator communicates with the pipeline between the energy storage mechanism and the instant opening valve through a thin pipe; and the thin pipe is provided with the needle valve B.