The invention discloses a construction method of a shield manhole, and belongs to the field of building construction. According to the technical key points, the construction method comprises the following steps of firstly, surveying and setting out, and positioning and leveling, secondly, reinforcement of jet grouting piles, thirdly, construction of an opening locking ring, fourthly, constructionof the manhole, and fifthly, bottom sealing of constructional steel; construction of the manhole comprises conventional section construction, reinforcement ring construction and shield section construction; conventional section construction comprises the steps of earthwork excavation, erecting of waist rails, erecting of corrugated plates, and erecting of first diagonal braces; reinforcement ringconstruction comprises the steps of earthwork excavation, erecting of waist rails, erecting of first diagonal braces and erecting of waist rails on the next layer; shield section construction comprises the steps of earthwork excavation, erecting of waist rails, erecting of corrugated plates, and then erecting of second diagonal braces in the waist rails; and as for bottom sealing of the constructional steel, the multiple pieces of constructional steel located in the same plane are erected in the waist rails at the bottommost end of a shield section, and thus the bottommost end of the shield section is sealed. The construction method has the advantage that after construction of the manhole is completed, a support structure in the shield manhole can be dismantled.