An assembly type energy-saving house profile is of a profile structure with a triangular section. The profile comprises plates, splicing pipes, connection plates and edge closing frames. Frames on the peripheries of the plates are the edge closing frames, a triangular notch is formed in the section of each edge closing frame, upper and lower splicing pipes can be inserted into the triangular notches, the sections between the two adjacent boards form a rhombic notch, the splicing pipes can be inserted into the rhombic notch, and the connection plates can be inserted into splicing elements to serve as connectors. By means of the profile, connection between wallboards becomes firmer and more stable, and the joint of the wallboards also has excellent windproof and heat-insulation properties due to the application of a bridge-cutoff structure. The profile is of a special universal male and female joint structure, and meets different requirements in different construction places.