Abstract：The distribution of channel sinews has the integrity of "accumulation，gathering，interaction and combination". There is a linkage law of "point--line--surface--entirety" in the function of channel sinews governing fettering the bones and improving joints function. The channel sinews store and protect channels and vessels， whose function depends on the nourishing of qi and blood and the regulation of channel qi. The pathogenesis of cervical and shoulder myofascial pain syndrome can be clarified based on the channel sinew theory--horizontal channel impediment obstructs the channels and vessels， leading pain and thus the channel sinew undernourished. In this way，horizontal channels accumulate and gather， resulting in the local dysfunction of channel sinews， the overall imbalance of channel sinews， and the injury of the distal channel sinews due to compensation. When applying acupuncture and moxibustion， equal attention should be paid to locally "releasing accumulation" and holistically "recovering".