The invention discloses an intelligent linear pneumatic device. The device is a linear pneumatic execution unit formed by a cylinder, a pulling-rope encoder, three groups of six-position five-way integrated valves, a control circuit module, and a communication module etc. highly integrated in an integrated structure according to the function requirement. According to the intelligent linear pneumatic device, the size is small, accurate control of the stretching or retraction distance and speed of a cylinder piston rod can be realized, each intelligent execution unit can independently work and can also work with other intelligent units in a cooperative manner, the production line is formed in the manner of wired communication or wireless communication, the flexibility of the re-design and combination of the whole production line is higher, the adjusting period of the production line is short, the cost is low, programming and configuration of the intelligent linear pneumatic device can be realized on the site, networking, accuracy, and flexibility of control are realized, and the market prospect is wide.