In this study, we have achieved novel continuous and passive Q-switched mode-locked operation in a Tm‍‍∶‍ZBLAN laser using a special crystal design. When the laser is in continuous operation, the maximum output power of 254, 296, and 230 mW is obtained using 1.5%, 3%, and 5% output mirrors, respectively. We use a 1.5% output mirror and transmission-type GaAs-SESAM as a mode-locking element to achieve a mode-locking operation. The absorbed pump threshold is as low as 131 mW. When the absorption pump power is greater than 1.09 W, a stable Q-switched mode-locking operation is achieved. The maximum output power is 98 mW, the pulse width of the Q-switched envelope is 6 μs, the repetition frequency is 19.23 kHz, the repetition frequency of the pulse under the Q-switched envelope is 102 MHz, and the pulse width is about 800 ps. The maximum single-pulse energy is 0.96 nJ.