The invention discloses a
verification and optimization method of a gearbox body design. The method includes: carrying out airtightness testing and
load testing on an already trial-manufactured gearbox body through simulating status in actual work; recording testing results, and then carrying out marking and
data analysis, wherein gearbox body structures qualified through
data analysis are markedas qualified, and gearbox body structures not qualified through
data analysis are marked as unqualified; then recording data situations which need to be optimized, and then carrying out optimization designing on the box body structures including reinforcing ribs, wall thickness and the like; and circularly carrying out airtightness testing and
load testing on a gearbox trial-manufactured after optimization designing. According to the method, the gearbox body design can be effectively verified, and optimization designing is carried out on the gearbox body structures, which include the reinforcing ribs, the wall thickness and the like, to enable the box body to be reliable and stable in strength and more reasonable in a structure.