The utility model provides a mould syntropy double -angle structure of loosing core, including movable mould and cover half, be equipped with the die cavity subassembly on movable mould and the coverhalf, the die cavity subassembly includes the movable mould and is the main slider bracket that the slope set up with the movable mould, be equipped with slidable owner's slider on the main slider bracket, the inserting groove has been seted up towards the one side of cover half to main slider, the inserting groove inner wall is equipped with the deputy slider block that can follow main slider slip direction and slide and set up, still support the piece including the control that sets up on the cover half, control is supported the piece and is inserted when the compound die and promote main slider to the inserting groove in and slide and realize the first angle compound die of loosing core, control supports that piece and deputy slider block are the forked tail cooperation, it promotes deputy slider block after accomplishing the compound die and remove to loose core in first angle, the deputy slider block other end is equipped with and is the forked tail complex piece of loosing core with deputy slider block to to the lifting that makes progress of main slider slip opposite direction's lopsidedness when deputy slider block mobile Mobile. The utility model has the advantages of thesimple structure operation is reliable.