Abstract: Disclosed is an ultraminiature tuning fork quartz crystal and a resonator, the ultraminiature tuning fork quartz crystal comprises a tuning fork assembly, the tuning fork assembly comprises a fixing block, two vibrating parts and a connecting part, both of the vibrating parts extend outward and are symmetrically set through the fixing block and are connected to the fixing block, the connecting part comprises two connecting arms, and both of the connecting arms extend outward and are symmetrically set through the fixing block and are connected to the fixing block; an outer wall of the connecting arms is provided with at least one groove group for filling conductive silver glue, each groove in the groove group penetrates two adjacent sidewalls of the connecting arms. This disclosure can solve the problem that opening holes at the connecting end of the electrical connecting arms will weaken the strength of the electrical connecting arms.