The invention discloses an electronic examination system and an electronic examination method for a construction drawing. The system comprises a management terminal server, a peripheral terminal server and a wireless communication transmitter / receiver, wherein an original database, an examination reference database, an examination expert talent database and six major subsystems comprising a file system, a statistical reporting subsystem, an online communication subsystem, an internal management subsystem, a system setting subsystem and a system management subsystem are set in the management terminal server. The examination method mainly comprises the steps of project examination acceptance, policy examination, professional distribution, technical examination, reexamination and issuing of an approval document. The system and the method have the advantages that a plurality of drawing examination experts in a plurality of professions can be provided for simultaneous examination, convenience for land-free drawing examination is also brought to the drawing examination experts, a plurality of shortcomings of multiple links, long running time, low speed, long time, low efficiency and the like of the conventional construction drawing examination are overcome, the drawing examination speed is greatly increased, and the working efficiency is greatly improved.