1 2Medical Records Management Division, Chongqing University Cancer Hospital, Chongqing, People’s Republic of China; 3Intensive Care Unit, Chongqing University Cancer Hospital, Chongqing, People’s Republic of China; 4Pharmacy Services, Chongqing University Cancer Hospital, Chongqing, People’s Republic of China *These authors contributed equally to this work Correspondence: Dehong Huang Department of Hematology and Oncology, Chongqing University Cancer Hospital, No. 181 Hanyu Road, Chongqing, People’s Republic of China Tel +86 23-65311341 Purpose: This study investigated the function and molecular mechanisms of miR-744-5p in multiple myeloma (MM). Methods: miR-744-5p and SRY-related high-mobility-group box 12 (SOX12) expression in clinical tissues and MM cells was monitored by quantitative real-time polymerase chain reactions and Western blot. miR-744-5p expression in MM cells was regulated by transfection. Cell proliferation was researched by cell counting kit-8 assay and plate clone formation experiment. Transwell experiment was utilized for migration and invasion detection. Glycolysis test was conducted for the detection of glucose uptake and lactate production of MM cells. The relationship between miR-744-5p and SOX12 was determined by dual-luciferase reporter gene assay and RNA pull-down experiment. In vivo experiment was conducted using nude mice.