  In this work, incorporating the effect of the minimum measurable in momentum
and maximal length, we studied thermodynamics property of Schwarzschild black
hole and the Unruh effect. {\color{red} According to this scenario, we see that
the black hole temperature cannot be smaller than a certain minimum value of $
T_{\min} $. Moreover, we find that black hole mass cannot be larger than a
maximum mass value of $M_{\max }$. Considering these findings first we compute
the corrected Hawking temperature versus the mass and examine its
characteristic behavior. Then, we derive the black hole's entropy and heat
capacity. We find that the black hole is stable when $\frac{M_{\max
}}{\sqrt{3}}<M<M_{\max }$. Finally, we examined the modified Unruh effect. We
find that the modified Unruh temperature explicitly depends on $\alpha$.
