a manual fork truck using a tightening device is disclosed . the tightening device applied to a manual fork truck , comprises a tightening rod ; a fixing portion on one end of the tightening rod ; and a plurality of tightening assemblies separately assembled to the tightening rod axially ; each of the plurality of tightening assemblies comprising at least one tightening arm on the tightening rod , and a tightening belt having one end connected to the at least one tightening arm .