The concrete pump truck has the advantages of fast pumping speed, high degree of automation, convenient operation, good maneuverability, high pouring quality, etc. It is able to conveniently convey concrete vertically and horizontally over long distances. The boom system of the concrete pump truck is a collapsible and unfoldable connecting rod mechanism, and the boom system realizes long-distance conveying of concrete in horizontal and vertical directions by raising, lowering, extending and closing the boom, and is not affected by intermediate obstacles.