LED linear constant current light emitting circuit and LED light emitting lamp panel

The invention discloses an LED linear constant current light emitting circuit. The LED linear constant current light emitting circuit comprises an alternating current input module, a rectification module, an EMC inhibiting module, a linear constant current control module and an LED light emitting module, wherein the alternating current input module is used for inputting alternating current, and connected with the input end of the rectification module; the input end of the EMC inhibiting module is connected with the output end of the rectification module; the output end of the EMC inhibiting module is connected with the current input end of the linear constant current control module; a plurality of constant current output ends are arranged on the linear constant current control module; the LED light emitting module comprises a plurality of tandem light emitting diode modules; each light emitting diode module comprises a plurality of light emitting diodes connected in parallel; the common cathode terminals of the plurality of light emitting diode modules are in a one-to-one correspondence to a plurality of constant current output ends, and respectively electrically connected with the plurality of constant current output ends. According to the linear constant current light emitting circuit for LEDs, a high-frequency transformer is avoided, and few components and parts are adopted, so that the lamps are simple in structure, low in cost and high in lighting effect.