The　prestress　design　is　crucial　in　cable-strut　structures　as　it　ensures　structural　stiffness　and　bearing　capacity.　In　this　paper,　cable　force　is　used　as　design　variables,　and　the　mechanical　problem　of　solving　node　balance　is　transformed　into　the　mathematical　optimization　problem　of　minimizing　node　unbalanced　force.　The　equivalent　force　model　(EFM)　is　used　to　establish　a　precision　control　function　which　can　dynamically　show　the　convergence　trend　of　node　unbalance　force.　The　differential　evolution　(DE)　algorithm　is　introduced,　and　the　precision　control　function　is　taken　as　its　fitness　function　to　minimize　the　solution.　To　make　it　easy　to　use,　the　differential　evolution　algorithm　is　modified.　On　the　one　hand,　an　enhanced　DE　combining　adaptive　mutation　operator　and　random　crossover　operator　is　proposed　to　improve　the　global　search　ability.　On　the　other　hand,　the　optimization　method　of　initial　population　is　proposed　to　solve　the　convergence　efficiency　problem　of　high-dimensional　structure.　The　accuracy　and　efficiency　of　the　proposed　method　are　verified　through　the　presentation　of　five　representative　cable-strut　structures　employing　distinct　design　variables　and　equivalent　force　models.　The　computational　efficiency　and　convergence　accuracy　of　the　method　are　also　evaluated.　This　method　is　suitable　for　force　finding　of　various　cable-strut　structures　and　can　realize　parametric　design.　It　can　dynamically　show　the　accuracy　change　of　iterative　process　and　provide　convenience　for　the　initial　prestress　design　of　engineering　designers.