The concrete mixer of front unloading type can directly carry out the material distribution operation of the concrete which is a special used vehicle entirely different from the traditional mixer and combining the high technology and high added value of material distribution function. The mixer adopts the technology and configuration such as high strength frame, driving axle air suspension, domestic engine postposition, manual transmission, hydraulic control automatic material distribution in the front of the cab, two-pass pneumatic braking and abs braking and so on. The mixing drum can realize the dry mixing function.