The invention discloses a spherical laser fluid environment sensor, and the sensor comprises an external spherical flexible reflection housing, wherein the inner side of the external spherical flexible reflection housing is provided with a material coating layer employing laser reflection, and a support material is a flexible material; an internal signal ball which consists of a plurality of lightsensing plates, wherein each light sensing plate is provided with one laser transceiver; and an information processing device which is used for building a relation model of the external spherical flexible reflection housing and an external force through the principle of light path inversion according to the position and intensity of a reflected laser signal of an emitted laser signal on the lightsensing plates and the laser receiving time. According to the invention, the external spherical flexible reflection housing deforms when the flexible reflection housing is in a changing external environment, and a spherical laser emitter emits a laser pulse, and a signal (position and intensity) received by a laser receiver is changed. Therefore, the shape of the external spherical flexible reflection housing can be deduced through the inversion of a light path, and a correlational corresponding relation between the external spherical flexible reflection housing and the fluid external force can be built. The sensor can be used for the intelligent sensing monitoring of the external force of the fluid environment.