A waterway slide switch device comprises a valve body member and a sliding member, the valve body member is disposed with a water inlet passage and two water dividing passages (12, 12'), the sliding member is configured to slide relative to the valve body member to enable the two water dividing passages (12, 12') to be switched to be in communication with the water inlet passage due to the sliding; said waterway slide switch device further comprising a pressure component, the pressure component is disposed in the valve body member and cooperates with the two water dividing passages (12, 12') to enable water flowing in the two water dividing passages (12, 12') to be both configured to act on the pressure component to enable the pressure component to be subjected to water force, the sliding member and the pressure component are configured to slide relative to each other, and the valve body member is disposed with a limiting mechanism configured to limit a movement or a movement distance of the pressure component, characterized in that, the sliding member comprises a sliding sleeve and a sealing portion secured to an outer side of the sliding sleeve, the sliding sleeve drives the sealing portion to slide to enable the two water dividing passages (12, 12') to be switched to be in communication with the water inlet passage, the sliding sleeve is hermetically and slidably connected to an outer side of the pressure component; the two water dividing passages (12, 12') are a first water dividing passage and a second water dividing passage, the first water dividing passage comprises a sleeve inner portion disposed in the sliding sleeve, water flowing in the sleeve inner portion is configured to act on a first end surface of the pressure component to generate the water force, the second water dividing passage comprises a gap section disposed between the sliding sleeve and the valve body member and a water outlet section in communication with the gap section, water flowing in the water outlet section is configured to act on a second end surface of the pressure component to generate the water force, and wherein inlets of the two water dividing passages (12, 12') are separated and face each other, the water inlet passage comprises a water dividing cavity disposed in the valve body member and disposed between the inlets of the two water dividing passages (12, 12'), the sliding sleeve passes through the water dividing cavity, the sealing portion is disposed in the water dividing cavity, and the inlets of the two water dividing passages (12, 12') is alternatively closed to achieve switching due to the sealing portion. the sliding member comprises a sliding sleeve and a sealing portion secured to an outer side of the sliding sleeve, the sliding sleeve drives the sealing portion to slide to enable the two water dividing passages (12, 12') to be switched to be in communication with the water inlet passage, the sliding sleeve is hermetically and slidably connected to an outer side of the pressure component; the two water dividing passages (12, 12') are a first water dividing passage and a second water dividing passage, the first water dividing passage comprises a sleeve inner portion disposed in the sliding sleeve, water flowing in the sleeve inner portion is configured to act on a first end surface of the pressure component to generate the water force, the second water dividing passage comprises a gap section disposed between the sliding sleeve and the valve body member and a water outlet section in communication with the gap section, water flowing in the water outlet section is configured to act on a second end surface of the pressure component to generate the water force, and wherein inlets of the two water dividing passages (12, 12') are separated and face each other, the water inlet passage comprises a water dividing cavity disposed in the valve body member and disposed between the inlets of the two water dividing passages (12, 12'), the sliding sleeve passes through the water dividing cavity, the sealing portion is disposed in the water dividing cavity, and the inlets of the two water dividing passages (12, 12') is alternatively closed to achieve switching due to the sealing portion.