Repetitive transcranial magnetic stimulation (rTMS) is a promising non-invasive neuroregulatory technique for alleviating cognitive and functional decline in patients with Alzheimer"s disease (AD). This study aimed to investigate the effects of rTMS on neural oscillation power and brain functional network (BFN) connectivity in AD patients, utilizing clinical scales, blood markers and electroencephalogram (EEG) data. Twelve patients with AD participated in the experiment, receiving rTMS stimulation at 20Hz. Clinical assessments, blood antibody detection, and resting-state EEG recordings were obtained both before and after stimulation. The analysis focused on the EEG power across delta, theta, alpha, beta, and gamma bands, and the construction of BFNs across these frequencies, with evaluation of network characteristics. Results indicated significant reductions in delta and theta powers following rTMS (P<0.05), a notable increase in gamma power (P<0.05), and no significant changes in alpha and beta power(P>0.05). In addition, this study revealed that after stimulation, the clustering coefficient of BFN in the delta band was significantly reduced (P<0.05), while global efficiency increased (P<0.05). In the alpha band, the degree of BFN increased significantly (P<0.05), alongside significant decreases in the clustering coefficient and characteristic path length (P<0.05). Furthermore, there was a correlation between clinical scale scores, blood markers and the topological attribute of the network.). Overall, these findings suggest that rTMS can modulate the intensity of delta, alpha, and gamma oscillations and enhance the connectivity of the corresponding oscillatory networks in AD patients, providing additional evidence for the application value of clinical scales, blood markers and EEG in in the diagnosis and monitoring of AD.