The invention discloses a dumbbell action recognition and standard evaluation system. The dumbbell action recognition and standard evaluation system comprises an intelligent dumbbell, an intelligent armlet and a data receiving terminal, wherein the intelligent dumbbell and the intelligent armlet are both in communication connection with the data receiving terminal; the intelligent dumbbell comprises a first microcontroller, a first action recognition sensor, a first Bluetooth communication module and a first battery module; the intelligent armlet comprises a second microcontroller, a second action recognition sensor, a second Bluetooth communication module and a second battery module; the data receiving terminal comprises a data evaluation and guidance module, a third Bluetooth communication module and a display module. The dumbbell action recognition and standard evaluation system has the advantages that through the design of the intelligent dumbbell and the intelligent armlet, multidirectional collection can be carried out on data of the intelligent dumbbell and limb action of arms of an operator, and then comprehensive and accurate evaluation and guidance are given through the data receiving terminal, thereby providing constructive suggestions for completing standard actions effectively and scientifically.