  The BESIII experiment in Beijing takes data in $\tau$-charm domain since
2009. For the moment the world largest samples of $J/\psi$, $\psi(3686)$,
$\psi(3770)$ and $\psi(4040)$ data have been collected. Hadron spectroscopy is
a unique way to access QCD, which is one of the most important physics goals of
BESIII. Experimental search of new forms of hadrons and subsequent
investigation of their properties would provide validation of and valuable
input to the quantitative understanding of QCD. The key to success lies in high
levels of precision during the measurement and high statistics in the recorded
data set complemented with sophisticated analysis methods. Partial wave
analysis (PWA) is a powerful tool to study the hadron spectroscopy, that allows
one to extract the resonance's spin-parity, mass, width and decay properties
with high sensitivity and accuracy. In this poster, we present the working PWA
framework of BESIII -- GPUPWA and the recent results of PWA of
$J/\psi\to\gamma\eta\eta$. GPUPWA is a PWA framework for high statistics
partial wave analyses harnessing the GPU parallel computing.
