An invisible bra with function of electrocardiograph and wireless transmission comprises a bra main body, and an electrode module, a central processing module, and a wireless transmission module set in the bra main body separately. The bra main body comprises two cover portions. The electrode module is embedded and exposed at an interior surface of one cover portion. The central processing module can output an inspection result by using the electrode module to detect and analyzing an electrocardiogram signal, and the wireless transmission module transmits the inspection result. By the design of integrating the electrode module, the central processing module, and the wireless transmission module to the bra main body made of silica gel, the electrode module can be stably positioned against the chest of a subject, making it convenient and practical.
