The invention relates to a solenoid valve, belonging to the technical field of control. The following defects exist in the prior art: the parts are subjected to welding deformation after being welded so that the assembled parts can not be fit, thus increasing reluctance and causing higher temperature rise in the use process, etc. The solenoid valve comprises a valve bush, an attracting part fixedat one end inside the valve bush, a moving part arranged in the valve bush and the like, wherein a magnet coil element with a magnetic conductor is fixed on the tubular periphery of the valve bush. The solenoid valve is characterized in that the opening end of the attracting part, which faces the valve bush, is provided with a middle part fit with the magnetic conductor and a peripheral part which is lower than the middle part and is fixedly connected with the opening end of the valve bush by welding. Through design improvement, the solenoid valve avoids the gaps between the attracting part and the magnetic conductor as a result of welding deformation and the influences caused by inconsistency of the gaps, thereby reducing the reluctance of magnetic circuits and improving the consistency,the performance index and the service reliability of the product.