The invention discloses a murine toe swelling tester, belonging to the technical field of pharmacological appliances. A total bearing plate is a rectangular body, a gravity pillar is arranged at one side of the upper end of the total bearing plate, the gravity pillar is connected with a measurement platform and a gravity sensor at the lower end of the total bearing plate by bolts, one end of the gravity sensor is connected with a sensor support, the other end of the gravity sensor is connected with a gravity support, and a measurement cup is placed on the upper end of the measurement platform; the other side of the upper end of the total bearing plate is connected with a stand column frame by bolts, the top end of the stand column frame is connected with an upper end plate by bolts, a lifting threaded rod is arranged at the front end of the stand column frame, the upper end of the lifting threaded rod is mounted on the upper end plate, a motor fixing plate of a rotation fixator is connected with a lifting board by a bolt through threaded holes of the lifting board, and one end of the motor fixing plate is connected with a rotation fixator motor; a detection channel is arranged on a measurement circuit board, and is electrically connected with an LM 358 direct current signal amplification module, the LM 358 direct current signal amplification module is connected with the gravity sensor, the measurement circuit board is electrically connected with an RS 232 communication port, and the RS 232 communication port is connected with a computer.