This paper introduces a novel approach called OPT-SSE to speed up and scale symbolic execution-guided symbolic execution method based on program function label slice. The OPT-SSE is constituted by two parts. One part is static analysis, which decomposes the whole program execution paths by different program function label slices through establishing the mapping between function tags and program CFG. The other part is specified function tags guided rule symbolic execution, which cuts unrelated branch path timely according to specified function tags flow when taking symbolic execution analysis. Through analyzing specified function label slice or different function label slices concurrently, OPT-SSE could avoid stuck in complex cycle, which is beneficial for speeding up goal-guided process and scaling the symbolic execution. OPT-SSE is evaluated on twenty applications from ten famous open softwares, like binutils, gzip, coreutils, and so on. Through comparison with KLEE, OPT-SSE speeded up goal-guided by 4.238 times, increased the goal-guided success rate about 31%, and increased instruction coverage about 8.95%, branch coverage about 8.28%.