In this paper,the power and temperature characteristics of Yb³⁺-dope d double-cladding photonic crystal fiber (PCF) laser are studied by experimental method.In the experiment,213.4W single-mode continuous-wave output power is achieved from the double-cladding photonic crystal fiber laser with 8m length at the dual-end pumping power of 260W.The optical to optical conversion efficiency is as high as ~82.1%.There is no nonlinear effect observed because of the low absorption coefficient photonic crystal fibe r pump laser,and the highest surface temperature of the photonic crystal fiber is just 32℃ at the maximum o utput power.This reports further validate the excellent properties of the low absorption coefficient double-clad ding photonic crystal fiber.If the coupling system of photonic crystal fiber laser is further optimized and the dual-end pu mping power is increased,the better performance can be expected to gain.