Abstract:[Objective] To introduce the surgical technique and preliminary clinical results of arthroscopic reconstruction of coracocla- vicular ligament without coracoid tunnel. [Methods] From April 2020 to September 2021, a total of 18 patients received abovesaid surgical treatment for Rockwood III-V acromioclavicular dislocation. Two clavicular tunnel was established on the lateral clavicle at16% and 25% of its total length respectively, and the coracoid under surface was released arthroscopically. Subsequently, the Tightrope with highstrength sutures and two- end button plates were introduced through a clavicle tunnel, pass under the coracoid bottom, and then pass through the other clavicular tunnel by leading wire. As both end button plates were set on the superior surface of the clavicle, the sutures were pull equally to tighten the Tightrope gradually and reduce the acromioclavicular joint, finally, the sutures were tied and fastened. [Re- sults] All patients had surgical procedures performed successfully without serious complications, and were followed up for 5~22 months. The ASES, VAS and Constant scores significantly improved at the latest follow up compared with those before operation (P＜0.05). [Conclu- sion] Arthroscopic reconstruction of coracoclavicular ligament without coracoid tunnel does achieve satisfactory clinical outcomes for acro- mioclavicular joint dislocation.