  Let $E_1,\;E_2$ be symmetric quasi Banach function spaces on
$(0,\alpha)\;(0<\alpha\le\8)$. We study some properties of several
constructions (the products $E_1(\M)\odot E_2(\M)$, the Calder$\rm\acute{o}$n
spaces $E_1(\M)^\theta E_2(\M)^{1-\theta}$, the complex interpolation spaces
$(E_1(\M),E_2(\M))_\theta$, the real interpolation method
$(E_1(\M),E_2(\M))_{\theta,p}$) in the context of noncommutative symmetric
quasi Banach spaces. Under some natural assumptions, we prove $$ (E_1(\M),
E_2(\M))_\theta=E_1(\M)^\theta
E_2(\M)^{1-\theta}=E_1^{(\frac{1}{\theta})}(\M)\odot
E_2^{(\frac{1}{1-\theta})}(\M)\;(0<\theta<1). $$ As application, we extend
these result to the noncommutative symmetric quasi Hardy spaces case. We also
obtained the real case of Peter Jones' theorem for noncommutative symmetric
quasi Hardy spaces.
