The utility model provides a self -propelled ditch cable groove support car. Belong to tunnel mechanical construction corollary equipment technical field. It is solved that the tradition exists that the flow chart is many by hand, the length consuming time of being under construction, is used to consolidate and support many, the big scheduling problem of the degree of difficulty of being under construction. Its leading features is: including die carrier door structures, the horizontal hydraulic cylinder of template, portal lift hydraulic cylinder, take off upright mould hydraulic cylinder, template assembly, preceding rail trucks and back rail trucks etc, portal lifting hydraulic oil cylinde and portal floorbar jack on constructing, the die carrier door be equipped with, preceding rail trucks, back rail trucks adorn respectively in the place ahead, rear both sides that the die carrier door constructs, the template assembly includes cable mould, ditch mould, side forms, flexible roof beam, flexible overcoat and extensible sliding rod, partial shipment in the left and right both sides that the die carrier door constructs. The utility model has the advantages of the construction progress is fast, degree of automation is high, construction quality is high, save construction cost, energy -concerving and environment -protective, the concreting construction of the two side ditch cableducts in mainly used tunnel.