The invention discloses packaging technology for a crystal silicon solar-energy photovoltaic battery unit, which comprises the following steps of front welding, back concatenation, laminated laying, component lamination, battery trimming, framing, junction box welding, packaging testing and warehousing, and has the advantages that the packaging technology removes bubbles by lamination and vacuum-pumping so as to have good lamination effect, performs fractionated lamination so as to ensure that the relative position of a component string, glass and the like is stable and the lamination quality is high, and has short curing time and high production efficiency.