In the pressure sensor, at least two resistors are simultaneously molded at the first mounting surface and the second mounting surface of the substrate component ensuring uniformity and consistency of resistance of all resistors, at least one of resistors is a strain sensing resistor, and the resistors are electrically connected to form a pressure measuring circuit. Connecting the pressure sensor to the desired panel to accurately detect the curved deformation amount of the panel. The resistors in a pressure measuring circuit are adjacently distributed, and the resistance value of the resistor changes with temperature at the same time, so that the influence of the temperature change on the pressure measuring circuit is very small, and the interference against the external environment is good.